A few months after World's Finest, Amanda Waller learns that the Riddler has hidden secret information about his involvement with Damian Dahrk and the criminal organization H.I.V.E, she sends the Suicide Squad led by Deathstroke and the mysterious Red-X, who never takes off his helmet, to infiltrate Arkham Asylum, kill the Riddler and retrieve the evidence. But the Squad will be in danger as they will end up getting in Batman's way.
In a Mid-Credit Scene, Hugo Strange observes the blueprint of Arkham City
In a post-credits scene, Bruce Wayne meets with Amanda Waller and Red-X, who removes his helmet and reveals himself as Dick Grayson who was working with Waller at Bruce's behest in exchange for information on who revealed Bruce's identity. to Lex Luthor, resulting in the events of Batman v Superman. She reveals that it was a mysterious man who calls himself the Red Hood.
