Batman and his allies must stop the plans of Hugo Strange and Ra's Al Ghul in the super prison Arkham City where the Dark Knight will find himself surrounded by several of his worst and most menacing enemies, including the Joker who kidnapped Commissioner Gordon and shot his Barbara. , the Batgirl. Meanwhile, an angry Dick Grayson is left with Huntress and Alfred to protect Wayne Manor from Lady Shiva, Deadshot, and T.Y.G.E.R. But things get complicated when they discover the existence of young Damian, Batman's son.
In a Mid-Credit Scene, Batman finds an abandoned ship owned by Carmine Falcone in Gotham harbor that was serving as a laboratory for the Scarecrow, who had been missing since the events of his defeat by the bat in Suicide Squad: Assault on Arkham.
In a Post-Credits Scene, Red Hood talks with Lex Luthor
