 "The Dark Knight Returns" tells an alternative story of Bruce Wayne, who at 55 years old returns from retirement to fight crime and faces opposition from the Gotham City police force and the United States government.The story introduces Carrie Kelley as the new Robin and the hyper-violent street gang known as the Mutants.The story also features the return of classic foes such as Two-Face and The Joker, and culminates with a confrontation against Superman, who works on behalf of the government.