Rise of the City: Bad Moon Rising

"Rise of the City: Bad Moon Rising" is the twenty-first episode of the fourth season of Arkham. It will be aired on 2019.

Synopsis
Dr. Moon as director of Arkham Asylum unleashes newer villains out in the open. Meanwhile, Jervis has a chat with Dr. Moon. Jim pays a visit to Jervis as to what he's doing in his cell. Penguin and Edward (The Riddler) try to team to take down Penguin's target in engagement.

Trivia

 * This episode will reveal one of the most important Batman character, Dr. Moon.
 * The episode name foreshadowed one of an oldie, "Bad Moon Rising".