Batman and Robin try to keep their relationship together even as they must stop Mr. Freeze and Poison Ivy from freezing Gotham City.
Batman and Robin are back working side-by-side to stop the villains of Gotham City, but is there tension appearing between them, especially when one villainess who calls herself Poison Ivy can make anyone fall in love with her...literally. Along with Poison Ivy, the icy Mr. Freeze is freezing anything which gets in his way from achieving his goal.—FilmFanUk
For quite some time, the Dynamic Duo of Batman and Robin work to continuing the mission of protecting Gotham City from evil forces. But now their relationship is challenged when they must fight the villainous duo of icy Mr Freeze and venemous Poison Ivy who seek to freeze Gotham and repopulate it with mutant plants. At the same time, the heroes must find a way to cure their sick butler Alfred while they also receive some help from new heroine Batgirl.—Blazer346
Mr. Freeze plans on taking Gotham City hostage by freezing the town into a permanent winter. In the meantime, a new seductive villainous, Poison Ivy, has appeared to cause a rift in the partnership of Batman & Robin. While all this is happening, faithful butler Alfred is dying. Mr. Freeze holds the key to save his life. Enter Batgirl to help save the day.—Humberto Amador
New troubles have arisen in Gotham City. First, there's a new super villain in town: Mr. Freeze, a former doctor whose blood is laced with cryogenic liquid, causing him to be cold in look and feeling who plans to freeze Gotham until he gets the money needed to finish finding the cure for a mysterious disease that has stricken his wife. Second, Poison Ivy, a villainess with luscious lips full of venom, has arrived in Gotham with her hulking servant, Bane, with plans to team up with Freeze and prepare the way for genetically enhanced plants. Third, Ivy has caused a rift between the partnership of the Dark Knight and the Boy Wonder. And finally, Alfred, Batman's trusted butler, has developed the same disease that Freeze's wife has. It is in this time of need that a new partner, Batgirl, steps forward to help the two rid the city of evil once more.—Will
Batman (George Clooney) and Robin (Chris O'Donnell) attempt to stop Mr. Freeze (Arnold Schwarzenegger) from stealing a cache of diamonds. The super-criminal freezes Robin and flees, notifying Batman that he has 11 minutes to thaw his partner. They learn that Freeze was once scientist Victor Fries, who became dependent on a diamond-powered subzero suit following an accident in a cryogenics lab he was occupying to find a cure for his wife, Nora, who was suffering from a terminal illness called MacGregor's Syndrome.
Nora has now been Cryo frozen by Victor, who is hoping to continue his research to develop a cure for her disease. Victor plans to freeze the entire Gotham city so as to demand the billions of dollars required to complete his research.
Meanwhile, botanist Dr. Pamela Isley (Uma Thurman) is experimenting with the strength serum "Venom" to create mutant plants capable of fighting back against mankind's destruction of flora. To her anger, she discovers that her senior colleague Dr. Jason Woodrue used her Venom samples to transform a diminutive prisoner into the "super soldier" Bane. When she refuses to become the mad scientist's partner, Woodrue kills her with animal-plant toxins and chemicals. She transforms into the beautiful Poison Ivy and kills Woodrue with a venomous kiss before vowing to use her new powers to establish botanical supremacy over the world.Alfred Pennyworth's niece Barbara Wilson (Alicia Silverstone) makes a surprise visit from England and is invited to stay at Wayne Manor until she returns to university. Alfred is revealed to be suffering from MacGregor's Syndrome.
Ivy arrives in Gotham City with Bane as her henchman. She interrupts a Wayne Enterprises press conference at the Gotham Observatory where a giant new telescope is being unveiled, exhorting Bruce Wayne to implement a proposal that would safeguard the natural environment at the expense of millions of human lives, which Bruce summarily declines. She later appears at the Gotham Botanical Gardens fundraiser, seducing everyone present with her pheromone dust, including the Dynamic Duo, who are there to protect a diamond on auction from Mr. Freeze. When Freeze crashes the event as expected, Ivy is instantly captivated by his "ruthless charm". Despite being captured by Batman and detained at the Arkham Asylum, Mr. Freeze is released by Ivy.
Ivy then proceeds to turn off Nora Fries' life support and makes Mr. Freeze believe Batman did it, thereby persuading him that they should kill Batman as well as the society that created him. They plan to turn the observatory's new telescope into a giant freezing gun to freeze the whole world's population to death and replace them with Ivy's mutant plants.
Meanwhile, Robin has become infatuated with Ivy and rebels against Batman, just as the villainies planned. He eventually goes to meet her at her garden hide-out. Ivy's venomous kiss fails to kill Robin because Batman had prevailed on him to coat his lips with rubber. She tries to drown Robin in her lily pond and entangles Batman in her crushing vines, although they are able to free themselves when Batgirl arrives and traps Ivy in her own floral throne. Having discovered the Batcave and decided to create her own crime-fighting persona with Alfred's help, Batgirl reveals herself as Barbara.
When the Trio arrive at the Observatory to stop Freeze, the criminal has already frozen Gotham. Bane attacks Robin and Batgirl, but they incapacitate him and restore him to his original human state. The two younger heroes save Gotham by re-positioning the observatory's satellites, using their mirrors to reflect sunlight from outer space to thaw the city.
Batman shows Freeze video footage of Ivy's confession about pulling the plug on Nora, but reveals that he himself restored Nora. He vows that Freeze will be allowed to continue his research at Arkham Asylum to heal Nora. Batman asks Freeze for the cure he created for the first stage of MacGregor's Syndrome for Alfred and Freeze atones for his misdeeds by giving him two vials of the medicine he had developed.
At Arkham, Ivy is joined in her cell by Freeze, who vows to exact revenge on her. Back at Wayne Manor, Alfred is cured and Bruce invites Barbara to live with them and continue helping him and Dick fight crime as Batgirl.