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.
- Year: 2023
- Country: United States of America
- Genre: Animation, Fantasy, Action, Mystery
- Studio: DC Entertainment, Warner Bros. Animation, Warner Bros. Home Entertainment Group
- Keyword: superhero, cult, based on comic, mad doctor, demon, supernatural creature, explorer, masked vigilante, masked superhero, ancient evil, magic book
- Director: Sam Liu, Christopher Berkeley
- Cast: David Giuntoli, Patrick Fabian, John DiMaggio, Karan Brar, Navid Negahban, Darin De Paul