Batman joins forces with Captain Marvel, Mary Marvel, and Captain Marvel Jr. to take on Dr. Sivana and his Monster Society of Evil. However, the villains gain the most likely of newcomers -- the wormlike Mr. Mind.
Quest roles:
Dee Bradley Baker(Clock King), Jeff Bennett(Joker), Greg Ellis(Cavalier), Mikey Kelley(Kamandi / Civilian (voice)), Jim Piddock(Dr. Watson (voice)), Tara Strong(Helena Bertinelli / Huntress (voice)), John De Vito(Captain Marvel Jr. / Freddy (voice)), Eden Gamliel(10 Year Old Batman (voice))