The movie begins with a gang of men with clown masks breaking into the 
bank where the mob has a large portion of their money stashed. It begins
 with five clowns, each getting a cut of the spoils. They suggest that a
 sixth member of the gang - nicknamed 'The Joker' - who did the 
planning, but sat out the robbery, doesn't deserve a cut. As the robbery
 goes on, the clowns begin to kill each other in order to get a larger 
cut, until a school bus crashes through the wall of the bank, killing 
another clown. A mob bank manager, who was himself shot with an 
automatic weapon after he tried to take out the clowns with a shotgun, 
tells the remaining clown that he doesn't know who he is dealing with. 
The clown kneels down and tells the banker, "Whatever doesn't kill you 
simply makes you...stranger..." then removes his mask to reveal that he 
himself is The Joker. Joker puts a grenade into the banker's mouth and 
boards the bus, leaving a string attached to the pin. The bus pulls out 
with all of the bank's cash and the pin pops out. It is just a gas 
grenade. The Joker joins a long line of school buses leaving the scene 
as the police arrive.
Gotham is then seen at night with criminals
 afraid to commit crimes under the watchful sign of the batsignal 
projected onto the clouds. We see Lt. James Gordon manning the 
batsignal, waiting for Batman with Det. Anna Ramirez, who asks if he's 
coming. Gordon explains that it is okay if he is not, hoping that he is 
busy elsewhere.
Meanwhile, in a parking garage, the Scarecrow is 
negotiating with the Russian mob members over the sale of some of his 
fear-inducing drugs. The sale is interrupted when some of Gotham's 
citizens dressed as Batmen wanna-be's begin shooting at the men. As he 
gases one of the fake Batmen with his mind-altering drugs from his cuff,
 the Scarecrow notes that they are not the real Batman, because Batman 
would never use a gun. Suddenly the Batmobile/Tumbler crashes through a 
barricade and Scarecrow notes, "That's more like it!" The Batmobile 
fires rockets into a nearby office, causing the remaining mobsters to 
begin to flee. The real Batman arrives on the scene and bends the rifle 
of one of the wanna-be Batmen before knocking him out.
The 
Chechen sends his rottweilers to attack the Batmen, and as Batman saves 
them he takes the dogs out after being badly bitten in the arm. The 
Scarecrow attempts to flee in a white van but Batman jumps onto the van 
and begins cutting into the side with his device called the mangler. 
Scarecrow swerves into a support which sends Batman to the ground. As 
Scarecrow gets away down a spiraling passageway, Batman leaps onto the 
roof of his van, smashing it to a halt. He leaves the fake Batmen and 
the Scarecrow along with some of the mobsters tied up together for the 
police to eventually round up.
Gordon arrives at the bank the 
Joker held up earlier with Ramirez who shows him the Joker's picture 
from a security camera. Batman arrives to inspect the scene, noting that
 they have irradiated the drug money to make it easier to trace. When 
Gordon asks him if the Joker is a threat, Batman informs him that he 
cannot worry about one man when there is an entire mob to bring down.
The
 next day, as Bruce Wayne stitches himself up from the dog bite, Alfred 
offers his concerns, warning Bruce to 'know his limits'. He notices 
Bruce keeping a close watch on newly appointed district attorney Harvey 
Dent via some computer screens, as Bruce is trying to decide whether or 
not Dent can be trusted. Alfred wonders if he is really spying on the 
relationship that Rachel Dawes has developed with Harvey Dent.
Harvey
 Dent arrives in court to join Rachel Dawes in prosecuting mobster 
Salvatore Maroni, the alleged new leader of the Falcone crime family. 
One of Maroni's men takes the fall in court, and attempts to shoot Dent 
from the witness stand. The gun doesn't go off and Dent punches the man 
before he is hauled off to jail. Maroni is eventually set free, to the 
dismay of Dent.
Dent meets Lt. Gordon, and after a short exchange
 of words, they both express their distrust for those that are working 
in each other's offices. Harvey interrogates Gordon over his involvement
 with the Batman and Harvey tells him he wants to meet him. Gordon 
requests search warrants for five banks that are believed to be holding 
the remainder of the mobs money. Dent agrees to back Gordon's search 
warrants, forming a tenuous trust with the honest Gordon, who in turn 
hails Dent as Gotham's "White Knight" while Dent questions Gordon about 
another nickname they had for him when he was at I.A.D., a nickname 
Gordon claims to have no knowledge of.
Lucius Fox holds a board 
meeting at Wayne Enterprises, negotiating an joint venture with Lau, the
 head of Lau Security Investments, based in Hong Kong. After the meeting
 with Lau, Wayne expresses his reservations with Lucius Fox about Lau's 
business operation, apparently illegal based on their profits. After 
agreeing to cancel the deal, Wayne asks Fox for a new suit. He explains 
that he needs to be lighter, and faster, in case he runs into any more 
guard dogs.
That night, Harvey dines out with Rachel. Harvey 
tells Rachel he had to make a reservation weeks earlier, and even then 
needed to exercised his influence to get a table at the very fashionable
 restaurant. Bruce and his date, the prima ballerina for the Russian 
ballet, encounter Rachel and Harvey. Bruce has them pull a table 
together so they can dine together, informing Harvey that he owns the 
restaurant. At first, Bruce seems jealous and threatened by Harvey, 
based on the fact that he is dating his own love interest, but Harvey 
explains how he supports the work of Batman and appreciates his help. 
Bruce changes his tune and informs Harvey that he intends to throw a 
massive fund-raiser for him.
Meanwhile, all of the top mob 
members are having a meeting. Because of their inside sources in the 
police, they were aware that the banks that their money was stashed in 
were going to be searched. Lau appears to them on a television monitor 
from his plane on his way back to Hong Kong. He informs the mob that all
 of their money has already been moved to a single secure location, just
 as Lt. Gordon and company are searching the banks, finding nothing but 
the irradiated trace money. When the Chechen expresses concern over the 
man with the clown makeup stealing $68 million from one of their banks, 
Maroni dismisses him as nothing but a nobody.
The Joker enters in
 the room, and after killing a hostile mob member's crony by way of a 
'magic trick', sits down and talks with the mob about how pathetic 
they've become since Batman came around. He tells them their one 
solution is to 'Kill the Batman', and offers to do so for half the mob's
 money. He warns them about Lau, saying he knows a squealer when he sees
 one, causing Lau to promptly turn off his monitor. The mob laughs, and 
as one of the mobsters, Gambol, rises from his seat and threatens the 
Joker, the Joker opens his coat, exposing grenades. Gambol tells the 
Joker that he's putting a price out on his head. The Joker tells the mob
 that when they plan to take things a little more seriously, give him a 
call, and presents them with 'his card', a joker playing card. And with 
that, he exits. But not before warning that Batman will come for Lau.
Harvey
 Dent, with Gordon, lights the batsignal to meet with Batman, who 
appears. As Dent and Gordon blame one another for the money's 
disappearance due to leaks from corrupt officers in the other's 
departments, they explain to Batman that they need Lau back, realizing 
that Batman is under no one's jurisdiction. They want to make him talk, 
and give up all the mob members' names. Batman agrees and disappears.
Fox
 shows Wayne his new suit, and Wayne begins planning an impromptu trip 
to Hong Kong. Fox will accompany him, making it look like the only 
reason for his visit was to cancel the negotiations with Lau's company.
Gambol
 is playing pool with some of his associates until one of them informs 
him that a group of hoodlums havd killed the Joker, and has the body. 
The body is brought in covered in a bag, and as Gambol is about to pay, 
the Joker rises up and holds a knife to his face while his men hold guns
 to his associates' heads. The Joker tells a story about how he got his 
scars from his father, and then kills Gambol. He offers the three 
surviving associates an opportunity to join his team, but he has only 
one opening. He leave the three with the halves of a broken, sharp pool 
stick and no choice but to fight each other for their lives.
Meanwhile,
 Fox arrives in Hong Kong to meet with Lau. He checks in his mobile 
phone at the front desk at Lau's building, as there are no cell phones 
allowed on the premises. Fox meets with Lau, and informs him of Wayne 
Enterprises' plans to cancel negotiations with his company. However, he 
secretly keeps one cell phone in his pocket, which has been adapted to 
produce a sonar map of the surrounding area. Upon leaving the building, 
he does not pick up the phone he dropped off, and he produces the map of
 the building to Bruce Wayne. That night, the phone that Fox left at the
 front desk emits a high frequency that shuts down all power in the 
building. Batman crashes in through a window in Lau's office, and after 
disabling some guards, grabs Lau and escapes by sending a balloon 
attached to a cable to a plane he has chartered flying over Lau's 
building.
Back in Gotham, Lau is interrogated by Rachel with Dent
 and Gordon looking on. Rachel presses him to give them the money Lau 
has taken, but Lau will not give in. After she threatens to have him 
moved to the County lock-up, Lau tells her that he can give them the 
names of the mobsters and their pooled investments. Dent then realizes 
that they will have the leverage they need in a RICO case of conspiracy 
to link all of the mob members together. Gordon decides to keep Lau in 
his holding cell at the Major Case Unit building and Lau agrees to 
cooperate with the police, and give the names of the mob members.
Gordon
 appears at Maroni's restaurant as the police rush in to arrest all of 
the mob members in attendance. As all of the mob members that Lau 
informed the police are rounded up for arraignment, Judge Janet Surrillo
 finds a Joker card in the middle of the stack of conviction papers. 
Dent gives a televised impromptu interview denying Batman's involvement 
while expressing gratitude for the police work in bringing the mob 
members to justice.
Dent, Gordon, and Commissioner Loeb meet with
 the mayor to tell him that Dent's rash indictment of the mob members 
will give the mayor clean streets for 18 months. The mayor informs Dent 
that his brash actions will bring down the full might of Gotham's 
underworld and corrupt citizens solely upon him. When the mayor asks if 
Dent is ready to be the city's target the dead body of a Batman wanna-be
 hanging by a noose slams against the mayor's window dressed up in a 
Batman suit, with makeup on his face like the Joker's - complete with 
the sides of the mouth sliced into a grin - and with a Joker card pinned
 to him reading 'Will the real Batman please stand up?'. Bruce and 
Alfred watch on as a video tape is played on the news of the Joker 
tormenting the wanna-be before killing him. He then promises that until 
Batman takes off his mask and shows everyone who he really is, people 
will die every day.
As Harvey Dent's fund-raiser at Wayne's 
penthouse gets underway, Rachel and a nervous Dent arrive and mingle. 
Wayne arrives with three models via helicopter and seeks out Harvey, 
whom he applauds and throws his full support behind claiming, "I believe
 in Harvey Dent." Minutes later, Rachel meets with Bruce on the balcony 
upset that Bruce is making fun at Dent but Bruce tells her that he truly
 believes in Harvey and that he could be the White Knight that will 
allow him to hang up his mantle as Batman so they can be together. Dent 
joins them to thank Bruce and retrieve Rachel.
Meanwhile Gordon 
discovers that there are 3 traces of DNA on the Joker card, from 
Commissioner Loeb, Harvey Dent, and Judge Surrillo, the Judge that is 
trying all of the mob members and found the card among the paperwork. 
Gordon takes this as a threat on their lives, and begins preparations to
 protect them. In the case of the Judge and Commissioner Loeb, however, 
this fails. The Judge's car blows up when the police arrive to take her 
into protective custody and Commissioner Loeb dies of severe poisoning 
from his liquor bottle before Gordon can stop him from drinking.
Dent
 takes Rachel aside to ask her to marry him, but she is torn and cannot 
give him an answer. Bruce subdues Dent and locks him in a closet while 
Rachel watches in shock. Bruce tells Rachel that they (the Joker and his
 goons) have come for Harvey and to stay hidden from sight.
The 
Joker and his goons burst in telling the guests that they are tonight's 
'entertainment." The Joker scans the room seeking out Harvey Dent when 
Rachel steps forward. He grabs her and pulls a knife on her telling her a
 different version of the story about how he got his scars, claiming 
that his wife was scarred by loan sharks and that he took a razor to 
himself to "make her smile," but that she left him over it. Rachel kicks
 him away and he comes after her saying that he likes that "little 
fight" in her, when Batman shows up and sends him reeling. A fight 
breaks out between Batman, the Joker, and his goons with the Joker and 
the goons beating on Batman pretty well. When Batman gains the upper 
hand he sees the Joker holding a gun at Rachel's head as he dangles her 
out of a shot out window. Batman demands he let her go, to which the 
Joker replies "Very poor choice of words" and lets her fall. Batman 
dives out the window and saves her using his cape to slow their fall as 
they crash into the roof of a car on the street. The Joker apparently 
vanishes from the scene.
The next day, Wayne tries to figure out 
what the Joker is after. Alfred relates a story of when he was in Burma 
with friends attempting to nullify the local criminals by bribing them 
with jewels. One thief however, tossed these bribes away and continued 
to raid the local convoys. When Bruce seems confused over this behavior 
Alfred informs him that some men can't be reasoned with, they don't want
 anything in particular, that they kill for sport. Alfred observes that 
they just want to watch the world burn, as Bruce fixates on the Joker's 
face on a monitor.
Batman is seen on the edge of a rooftop 
listening in to cell phone frequencies when he overhears a plot against 
Harvey Dent. Gordon rushes to the apartment with Ramirez and Batman to 
find two policemen murdered, with the last names "Harvey" and "Dent." 
Ramirez begins to blame Batman, but Gordon cuts her off. As Batman 
removes a piece of concrete wall that contains a bullet used in the 
murders in hopes of finding evidence, Gordon notes that the Joker has 
left an advance copy of tomorrow's newspaper indicating the death of the
 mayor.
At Wayne Enterprises, Fox meets with Wayne's accountant 
Coleman Reese, who claims to know about certain problems with Wayne's 
funding in research and development, claiming that Wayne has some sort 
of government project with cell phones for the army underway. He also 
uncovers Fox's designs for the Batmobile/Tumbler. He tells Fox that he 
wants $10 million per year for the rest of his life to keep this a 
secret. Fox smiles and says, "Let me get this straight. You think that 
your client, one of the wealthiest and most powerful men in the world is
 a secretly a vigilante who spends his nights beating criminals to a 
pulp with his bare hands, and your plan is to blackmail this person? 
Good luck."
Fox helps Wayne reconstruct the bullet taken from the
 murder scene and produces a fingerprint. Fox asks him if he has 
reassigned the R&D department. Bruce acknowledges that he has, 
claiming he is playing this one "close to the chest."
Wayne 
traces the bullet fingerprint's owner to an apartment overlooking the 
funeral speeches for Commissioner Loeb and takes off on motorcycle.
As
 the ceremony continues on the street below, Wayne inspects a room where
 he believes the Joker might be, and he finds several men tied up. They 
tell Wayne that their guns and uniforms were stolen. Wayne inspects 
binoculars pointed out of a blinded window. The window blind is 
connected to a timer. As the timer reaches zero, the blinds quickly 
raise, and the police snipers positioned around the area all shoot in 
that direction. At the same time, the Joker, who had removed his makeup 
and played himself off as a member of the honor guard for the ceremony, 
turns and takes a shot at the mayor, but Lt. Gordon dives in the way, 
getting shot in the back and falling. Everyone panics and runs, but the 
police shoot one member of the honor guard in the leg and haul him into a
 truck. Dent himself climbs in the truck, and upon inspecting the 
criminal, sees that the name-tag on his uniform reads 'Officer Rachel 
Dawes'. He calls Rachel and informs her that she's been targeted, and to
 get to the safest place she can, which in her case is Bruce's 
penthouse. He tells her he loves her, but there is no answer from 
Rachel.
Gordon's family is visited at home, to inform them of the
 death of Gordon at the funeral ceremony. Gordon's wife, Barbara, shouts
 out at the empty sky to Batman that he has brought this craziness upon 
Gotham. Gordon's young son catches a brief glimpse of Batman mournfully 
watching the scene.
Meanwhile, Batman enters a club and grabs 
Maroni after beating on his men. He interrogates Maroni on the Joker's 
whereabouts, who claims that he should have held him from a higher 
location. Batman drops him off the ledge, injuring his legs and learns 
that Maroni has no idea where the Joker is. Maroni explains that the 
Joker has no friends and no one will give him up because unlike Batman, 
he plays by no rules.
As Dent is interrogating the captured 
so-called honor guard member about what he knows about the Joker, he is 
enraged and holds a gun to his head. He flips his father's lucky silver 
dollar for his life, coming up on heads. As he flips the coin again, 
Batman shows up and snatches the coin in midair, asking if Dent would 
really leave a thug's life up to chance, to which Dent answers, "Not 
exactly." He informs Harvey that this criminal - Thomas Schiff - is a 
paranoid schizophrenic patient from Arkham Asylum and that he won't 
learn anything from him. He also tells Harvey that if anyone saw this 
unjust way of interrogating someone, all that good work that Dent's done
 for Gotham would be lost. He tells Harvey to hold a press conference 
the following day, because he wants to use that opportunity to turn 
himself in. As Batman leaves, Harvey yells at him that he can't give in.
Bruce
 arrives back in his penthouse to find Rachel waiting. She tells him 
that turning himself in will not stop the Joker's murderous rampage, but
 Bruce says he has enough blood on his hands already. He reminds her 
that she promised him that they would be together if and when he hung up
 the mantle of Batman. She tells Bruce not to make her his only hope for
 a normal life and they share a kiss. She tells Bruce that if he turns 
himself in as Batman that the city will never let them be together.
Back
 at Wayne's secret base of operations for Batman, he and Alfred begin 
destroying everything that might tie Lucius Fox or Rachel to Batman. 
Alfred tries to talk Bruce out of it, asking him to endure these trying 
times and allow Batman to make the right choice that nobody else can for
 the good of the city. Bruce explains that Batman cannot endure the 
responsibility for innocents dying, especially where Rachel is 
concerned.
At the press conference, Harvey attempts to reason 
with the assembled press and police to not give in to the fear that the 
Joker has unleashed upon the city. He agrees that Batman is a vigilante 
but that the people of Gotham should hold him accountable, and not give 
in to the whims of this terrorist known as the Joker. However, the 
people are overcome with fear, crying out "No more dead cops," to 
applause indicating that Harvey will not be able to sway them. Upon his 
failure, Harvey announces that HE is the Batman, and gets handcuffed and
 taken away. Bruce Wayne is shown with a look of confusion on his face.
Rachel,
 watching the news conference at Bruce Wayne's penthouse, confronts 
Alfred over Bruce's seeming cowardice in allowing Harvey to take the 
fall when he claims to be Batman. Alfred explains to Rachel that Batman 
is instead allowing himself to be something else besides a hero, mainly a
 figure outside of the system that the people can both turn to or blame 
in times of need, that Batman can 'take it". Rachel gives Alfred a 
letter for Bruce and tells him to give it to Bruce when the time is 
right. When Alfred asks what it is, she tells him it is open and hugs 
him before departing to see Harvey as he is being transported to the 
County lock-up.
While being taken to a convoy that will transport
 him to a county, Harvey explains to Rachel that this is Batman's 
chance. He then pulls out the coin and says "Heads: I go through with 
this," and flips it, landing on heads. When Rachel tells him that he 
can't leave something like that to chance, he tosses her the coin, 
revealing that it is a two-headed coin. During this transport, he's 
planning on getting attacked by the Joker, and he's planning on Batman 
to come and save him, and to capture the Joker. The convoy takes off.
While
 transporting Harvey, the Joker and some goons start taking out the 
police cars in a large semi truck. He pulls out an RPG and beings firing
 at the armored truck carrying Dent. The Tumbler arrives and attempts to
 stop the Joker, and gets hit with the RPG in the process. His car takes
 'catastrophic' damage, and he's forced to eject. However, the ejection 
in this car is a bike, that deploys out the front of the car. This bike 
becomes known as the 'Batpod'. Batman chases down the Joker on his 
Batpod, and after firing some cables at the truck and weaving them 
through some light poles and buildings, flips the truck completely over.
 The Joker emerges with a Smith & Wesson M76 Submachine gun and 
shoots at Batman, who speeds towards him on his Batpod, all the while 
screaming at Batman to hit him. Batman honors his own non-lethal code 
and swerves around the Joker then crashes into the flipped truck, 
falling to the ground. As the Joker jumps on him with a knife, one of 
the SWAT officers holds a gun to the back of his head, and upon removing
 his helmet and mask, shows that it was Lt. Gordon, who faked his death 
to protect his family. The Joker is hauled away to the MCU. Harvey gets 
out of the truck and into a cruiser, stating he is off to see a worried 
girlfriend.
At Gordon's Major Crimes Unit building, Gordon is 
promoted to Commissioner by the Mayor. The Joker shares a cell with a 
large man who complains about his insides hurting. Commissioner Gordon, 
after reuniting with his family, gets a call explaining that Harvey 
never made it home. He returns to the prison to interrogate the Joker. 
During the interrogation, Batman appears and starts beating on the 
Joker, trying to find out where Harvey is. The Joker gets under Batman's
 skin telling him that they are both freaks and that when the people of 
Gotham no longer view Batman as a necessity, they will turn on him. 
Batman becomes enraged and puts a chair under the door and beats the 
Joker savagely, but The Joker just laughs and defiantly tells Batman 
that there is nothing he can do to him to hurt him and that he actually 
enjoys the beatings. The Joker sadistically reveals that not just 
Harvey, but Rachel are in separate locations, both tied up and strapped 
to explosives that will explode in a short amount of time. He gives the 
locations of the two, saying that he only has time to save one of them 
and that he must make a choice that will violate Batman's "code" of 
non-lethal means...that one of them will die since Batman cannot save 
them both. Batman heads off, telling Gordon that he's going after 
Rachel. Gordon gets some men ready and heads off after Harvey.
As
 Batman and the police are rushing towards the two prisoners, Harvey 
awakens to hear Rachel's voice. Whoever captured them set up an intercom
 system so that the two can communicate. Harvey tells Rachel that 
everything will be OK, and Rachel tells Harvey that she wants to marry 
him. While Dent's trying to hop around in his chair trying to find 
something sharp to cut his ropes with, he falls over and knocks an oil 
drum down, and the gasoline spills all over half of his face. Meanwhile,
 back at the jail, the Joker tricks a cop and holds him hostage, and he 
tells the other cops he just wants his phone call. Upon getting a cell 
phone and dialing a number, the large man that was in the cell with him 
blows up. The Joker had cut him open and implanted a cell 
phone-triggered device inside of him. The Joker grabs Lau and flees the 
jail.
Batman arrives at the address that the Joker had told him 
Rachel was at, but when he opens the door, he finds Harvey Dent instead,
 who screams in despair at having been found instead of Rachel. Gordon 
arrives at the supposed location for Dent but the warehouse explodes and
 Rachel is killed. As Batman saves Dent by carrying him out of the 
warehouse, the explosion ignites the gas that saturated Dent's face, 
horribly burning it. Dent is taken to Gotham General Hospital. Batman 
visits Dent in the hospital, and leaves him the two-headed coin that 
they found at Rachel's site of death. One side of the coin is still 
shiny, while the other side is scraped and burnt.
Alfred reads 
Rachel's letter. She explains that she is going to marry Harvey Dent and
 that when she told him that she would be with him when he no longer 
need to be Batman that she meant it. However, she realizes that he will 
always be Batman so she will always be there as his friend.
Bruce
 expresses to Alfred his devastation behind losing Rachel and that he 
feels responsible for inspiring madness and death. he tells Alfred that 
she was going to wait for him. Alfred chooses not to give him her 
letter, saying the time is not right and that with Harvey Dent 
hospitalized, it will be up to him alone to fight the crime in Gotham 
City. Meanwhile, Harvey wakes up in the hospital with a large bandage 
over half of his face, finds his now scarred two-headed coin, and 
screams out in anguish over losing the one person he loved.
Commissioner
 Gordon visits Dent and tries to tell him how sorry he is for what has 
transpired, questioning why Dent refused skin grafts and how he can 
stand to be in unrelenting agony over his disfigurement. Harvey is 
filled with rage for Gordon not listening to him when he warned Gordon 
not to trust the corrupt officers that Dent investigated during his time
 in Internal Affairs which has resulted in Dent's disfigurement and 
ultimately Rachel's death. Dent demands Gordon tell him the nickname 
they had for him when he was in I.A., which Gordon ashamedly replies 
"Harvey Two-Face," while being forced to stare at the extensive burns 
and scarred tissue that have enveloped half of Harvey's face. As Gordon 
leaves an emotionally devastated Harvey, he runs into Maroni in the 
hallway who tells him that the Joker has gone too far and that if Gordon
 wants the clown, he knows where he will be.
Wayne's accountant 
Reese appears on a news show claiming to be able to tell the world who 
Batman is. He tells Gotham that he is going to reveal Batman's identity,
 but before he can, the Joker calls in to the show saying that he 
doesn't want this lawyer to ruin his fun. He says that if the lawyer is 
not killed within 60 minutes, he is going to blow up a hospital. This 
triggers the police to rush in and protect the lawyer, and try to carry 
him to safety. At the same time, other police are evacuating all of the 
hospitals in Gotham City. When they get to Gotham General, a police 
officer attempts to evacuate a nurse in Harvey Dent's room, which then 
turns out to be the Joker, and he kills the cop. He then explains to 
Two-Face how he needs to introduce a little anarchy and chaos, how easy 
it is to bring down all the good people in the world and how it's all 
fair. Joker unties Two-Face and hands him a pistol. Two-Face, bent on 
revenge and now believing everything in the world should be decided by 
chance, flips the double-headed coin to decide whether or not to shoot 
Joker which Joker agrees is only fair. Though we don't see it, the coin 
obviously lands on the clean side since the next scene shows Joker 
leaving Gotham General Hospital as it blows up in the background.
Afterwards,
 the Joker appears on TV again, forcing kidnapped GCN reporter Mike 
Engle to read out his plans. He reads that Gotham City now belongs to 
the Joker, starting that very evening. Anyone that doesn't want to be a 
part of his game should leave now, but they are going to have a hard 
time leaving the city by the bridges. He alludes to the fact that 
something big was going to happen that very night. During which, 
Two-Face enters a local bar where Detective Wuertz - the 'dirty' cop 
that had picked him up after the Joker was captured - hangs out. After 
questioning him, he flips the coin which lands on the dirty side and he 
kills Wuertz. At the same time, Batman uses Fox's 'cell phone sonar' 
technology to somehow turn every single cell phone in Gotham into a 
sonar device, giving him the opportunity to spy on everyone in Gotham. 
He calls Fox in, and tells him to monitor the screens, and give him 
updates on the Joker's location when he sees him. Fox is appalled that 
Batman would use his technology to spy on the citizens of Gotham and 
reluctantly agrees to help, stating that the machine must be destroyed 
after the Joker is captured or he will have to retire.
Two-Face 
continues to question mob members, trying to uncover the identity of the
 dirty cop that kidnapped Rachel. When confronting Maroni in Maroni's 
car, he learns that the other cop is Ramirez. He then flips the coin for
 Maroni, which lands on the clean side. "Lucky Man," he remarks before 
he flips it again. It lands on the dirty side and he buckles up and 
states, "But he's not" as he shoots Maroni's driver, causing the car to 
veer off the road and crash into the dockyards. Meanwhile, two large 
ferries leave Gotham due to the Joker's threats. One is inhabited by 
criminals that Harvey and Gordon helped put away, the other is packed 
with innocent citizens - the city's bridges apparently being wired with 
explosives. While sailing off, the two boats completely lose all power 
and their engines die. Both ships eventually realize that there are 
explosives strewn all about the boat, and they both find detonators. It 
is at this time that the Joker's voice is heard over the loudspeaker of 
both ferries, and he informs them that they are part of a social 
experiment. The detonator on each boat is for the other boat. One ferry 
must press the button and destroy the other boat by midnight, or else 
the Joker will destroy both boats. This brings about much chaos in both 
boats, and a lot of soul searching about morality and about if anyone 
could actually do such a thing.
Fox finds the Joker, who is holed
 up in a building still being constructed with many clown guards. Batman
 notifies Gordon of the location, and speeds off towards the building. 
Meanwhile, Two-Face forces a frightened Ramirez to call Gordon's family 
and tell his wife and children to meet her at the exact spot where 
Rachel was killed. They believe her because they trust her. Afterwards, 
Two-Face, angered with Ramirez's pleas to spare her life for the sake of
 her sick mother, flips for Ramirez's life. The coin lands on heads, so 
he just knocks her out, telling her that she "lives to fight another 
day." As Gordon arrives at the building where the Joker is, he gets a 
call from his family telling him they are being held captive by Two-Face
 in the place where Rachel was killed. Gordon rushes off to save his 
family as Batman breaks in to the building. After realizing that the 
clown guards are the actual hostages and the doctors/hostages are the 
Joker's goons, he beats down some SWAT members in order to prevent them 
from killing the clown guards, and he disables the goons as he makes his
 way up to the Joker's location. When he finally confronts the Joker, 
the Joker sends the Chechen's rottweilers after him, and while Batman 
fights them off, the Joker beats him brutally with a blunt metal object,
 and eventually throws him close to the edge of the building, trapping 
him under a metal beam.
At the same time, the two boats are still
 debating what to do with the detonators. On the 'criminal ferry', one 
of the largest and meanest-looking convicts makes a speech about the 
warden holding the trigger not knowing how to take life, then goes up to
 the warden and asks to take the trigger so he himself can do what the 
warden should have done ten minutes ago. The warden hands the convict 
the trigger and the convict promptly throws it out of the ferry, making 
it impossible for anyone on the convict ferry to blow up the 'innocent' 
ferry. On the innocent ferry, after having voted to use their detonator,
 the officials can't bring themselves to act out the decision. A man 
stands up, takes the detonator but is unable to press the button.
The
 Joker, on top of Batman while holding him down, shows signs of 
disappointment when neither of the ferries' passengers will stoop to his
 level. As he's about to destroy the two boats, Batman fires his 
gauntlet darts at him, knocking the detonator out of his hands, and 
throws him over the edge of the building. Before he can hit the ground, 
however, Batman fires one of his grappling gun tools at him and saves 
him. While hanging in front of Batman, the Joker tells him that the two 
of them are destined to fight forever, and how Batman really IS 
incorruptible. The Joker reveals to him, however, that his real plan was
 to engineer the fall of Gotham's White Knight, Harvey Dent, since that 
would introduce much more chaos when a good man like Dent is shown 
descending into chaos and evil. Batman heads off to find Harvey, while 
the SWAT team captures the Joker.
At 250 52nd St, Gordon arrives 
to see Two-Face holding his family hostage. Two-Face knocks him to the 
ground and tells him that he's going to make him suffer just as he did, 
as he grabs his young son Jimmy and prepares to flip the coin for his 
fate. Batman arrives and tells him to stop, and to blame the people 
responsible for Rachel's death. So then Two-Face flips the coin for 
Batman, which lands on the dirty, scarred side, and Two-Face shoots him.
 He then flips the coin for himself and it lands on the clean side. As 
he's flipping the coin for Gordon's son, he tells Gordon to lie to the 
boy and tell him that everything will be alright, just as Dent himself 
had to tell Rachel earlier, seconds before she was killed. Batman gets 
up and tackles him and they fall off of the building together. Unseen by
 them, the coin lands on the clean side. Batman hands Jimmy up to Gordon
 as Batman himself falls to the ground next to Two-Face, who lies 
motionless.
As Gordon climbs down to check on Batman, Batman 
laments that, in the end, the Joker won. By corrupting Harvey Dent and 
turning him evil, he tore down the best of them. If Gotham were to find 
out about Dent's murders, then the symbol of hope and faith he had given
 Gotham would diminish and all the prisoners he helped put back in jail 
would be let out, thus creating chaos. Batman explains that Gotham can 
never find out about the murders, and takes the blame of them on 
himself, so that the Joker wouldn't win and the city's peace would 
remain.
We see a montage of Commissioner Gordon and other members
 of the Gotham City Police Department gathered at a memorial to Harvey 
Dent. It is unclear whether he was killed or not. Gordon then smashes 
the Bat Signal above the MCU Building, while Alfred burns Rachel's note 
and Lucius shuts down the sonar machine with a pleased look. Batman, in 
the background, continues to explain that by taking the blame of the 
killings, the faith that the people of Gotham had in Harvey Dent can be 
rewarded, and they can feel justified.
Batman then runs from 
Gordon as the cops begin to chase him, and Gordon tells his son that 
while Harvey Dent was the hero Gotham needed, Batman is the hero that 
Gotham deserved. The bat-signal is destroyed and a manhunt is issued for
 Batman. Batman gets on his Batpod and speeds away, while Gordon 
declares:
"He's a silent Guardian. A watchful protector. A Dark Knight."