The Riddler escapes from Arkham Asylum with the sole purpose of exacting revenge on the Dark Knight, doing so by placing one of Batman's closest allies, Commissioner Gordon, in jeopardy. With the use of the Batmobile and the Batplane (Batwing), the Caped Crusader must again defend the people of Gotham City against the question-marked villain and his gang of henchmen.
When Judge Maria Vargas is found dead by Mayor Flutie, Batman and Robin must find out who is behind the murder. Once they find out who it is, the duo face the likes of Two-Face and Mr. Freeze before they take on The Penguin in an all-out fight of good versus evil. But when The Penguin finds something out he shouldn't have, the future of Batman and Robin becomes uncertain.
Batman, Robin and Nightwing investigate a string of incidents where a mysterious assailant has been taking down numerous crime organizations all over Gotham City. In their findings, they discover that while the thugs were taken down and no cash was stolen in the crime scenes, The Riddler and The Scarecrow have been lethally drugged with a botanical neurotoxin found only in the Far East. Moreover, blood splatters in the crime scenes indicate that the assailant was reckless, not caring about sustaining gunshot wounds during the fights while drugging the villains. Batman concludes that the assailant is Batgirl, who is being manipulated by Poison Ivy; the gunshot wounds she sustained were her failed attempts at breaking the spell. Batman and Robin confront Poison Ivy, who attempts to kill Batman with a lethal dose of the neurotoxin. An injured Batgirl, however, briefly breaks Poison Ivy's spell on her to block the shot as the villainess makes her escape and Nightwing rushes to the scene with the antidote.
The mayor of Gotham City orders District Attorney Harvey Dent (Billy Dee Williams) and Police Commissioner James Gordon (Pat Hingle) to increase police activity and combat crime in preparation for the city's bicentennial. Reporter Alexander Knox (Robert Wuhl) and photojournalist Vicki Vale (Kim Basinger) begin to investigate reports of a vigilante dubbed "Batman", who is targeting the city's criminals.
Tucker and Esther Cobblepot, an aristocratic couple, throw their deformed infant child in a river, feeling that Gotham City's high society would not approve after witnessing their son kill their pet cat. However, a flock of penguins living in an abandoned zoo's arctic exhibit connected to the sewers rescue and raise him. 33 years later, the child becomes The Penguin (Danny DeVito) and the leader of the Red Triangle Circus Gang, who appear in Gotham City during the annual Christmas tree-lighting ceremony and cause a riot. As the police and Batman (Michael Keaton) deal with the riot, one of the guests at the ceremony, a prominent businessman named Max Shreck (Christopher Walken), is kidnapped and taken to the Penguin, who desires to become a citizen of Gotham and blackmails Shreck into helping him by threatening to expose evidence of his corporate crimes.
When Batman (West) and Robin (Ward) get a tip that Commodore Schmidlapp (Reginald Denny) is in danger aboard his yacht, they launch a rescue mission using the batcopter. As Batman descends on the bat-ladder to land on the yacht it suddenly vanishes beneath him. He rises out of the sea with a shark attacking his leg. After Batman dislodges it with bat-shark repellant, the shark explodes. Batman and Robin head back to Commissioner Gordon's office, where they deduce that the tip was a set-up by the United Underworld, a gathering of four of the most powerful villains in Gotham City (Joker, Penguin, Riddler and Catwoman).
À Gotham City, les quatre plus grands criminels (le Joker, le Pingouin, le Sphinx et Catwoman) font peser une terrible menace. Les super-héros Batman et Robin vont faire face à ces méchants et devront même aller dans l’espace pour contrecarrer le plan diabolique de leurs ennemis.
Bruce Wayne returns home to Gotham City after 12 years abroad, and Lieutenant James Gordon moves to Gotham with his pregnant wife, Barbara, after a transfer from Chicago. Both are swiftly acquainted with the corruption and violence of Gotham City, with Gordon witnessing his partner Detective Arnold Flass assaulting a teen for fun.
Alors que Bruce Wayne et Selina Kyle (et leurs alter égo, Batman et Catwoman) entament une relation amoureuse, un nouvel ennemi apparait; un ennemi qui a manipulé des criminels aussi puissants que Bane, Poison Ivy, L'Épouvantail, Gueule d'argile, Harley Quinn ou encore le Joker; un ennemi qui a découvert la véritable identité de Batman et tous ses secrets; un ennemi qui a un plan pour détruire le justicier, ses proches et ses alliés définitivement: Silence...
After the death of his protégé Jason Todd, billionaire industrialist Bruce Wayne was forced to retire from his Batman persona. Ten years later, Gotham City is overrun with crime and terrorized by a gang known as the Mutants. The 55-year-old Wayne maintains a friendship with 70-year-old retiring Police Commissioner James Gordon, while the Joker (Batman's archenemy) has been catatonic in Arkham Asylum since Wayne's retirement. Arkham inmate and former district attorney Harvey Dent undergoes plastic surgery to repair his disfigured face. Although he is declared sane, he quickly goes into hiding following his release. Dent's disappearance, news stories of the crime epidemic throughout the city and the memory of his parents' deaths drive Wayne to become Batman once more. He combats serious crimes, rescuing 13-year-old Carrie Kelley, but now struggles with the physical limitations of age.
Batman and Robin struggle against Dr. Daka, a Japanese scientist and agent of Hirohito who has invented a device that turns people into pseudo-zombies and has a base in a funhouse of horrors in a Japanese area of the city. Daka makes several attempts to defeat the Dynamic Duo before finally falling to his death when Robin hits the wrong switch, opening a trapdoor to a pit of crocodiles.
Since his last encounter against Batman, Mr. Freeze has found a home in the Arctic and started a family (of sorts) with the still cryogenically-encased Nora, an Inuit boy named Kunac, and two pet polar bears, Hotchka and Shaka. Nora's condition begins to rapidly deteriorate due to a submarine accidentally emerging from underwater directly underneath them, shattering her containment vessel. Freeze returns to Gotham City with his companions. He enlists the help of Dr. Gregory Belson to find a cure. Belson determines that Nora needs an organ transplant, but due to her rare blood type there are no suitable donors available.