In 1985, the murder of a government sponsored superhero draws his outlawed colleagues out of retirement and into a mystery that threatens to upend their personal lives and the world itself.

Explorer Bruce Wayne accidentally unleashes an ancient evil, and returns to Gotham after being away for two decades. There, Batman battles Lovecraftian supernatural forces and encounters allies and enemies such as Green Arrow, Ra's al Ghul, Mr. Freeze, Killer Croc, Two-Face and James Gordon.

Desperate to help her ailing brother, a young woman agrees to compete in a deadly game of "Would You Rather", hosted by a sadistic aristocrat.

Batman teams up with the Scooby gang when villains from both of their worlds unite to wreak havoc on the city. Featuring classic DC villains like the Joker, Catwoman, Harley Quinn and the Riddler alongside heroes like Aquaman, Black Canary, and Plastic Man. Also featuring classic Scooby-Doo villains like the Ghost Clown, Space Kook, and Miner 49er.