We’ve already seen one look at the new Justice League Action in … well, action, so when can we expect the official debut? As early as December, now that Cartoon Network confirms a four-part series premiere along with a brand-new clip featuring Superman and Wonder Woman.

Per Cartoon Network, the new series will premiere four-part special “Shazam Slam” on Friday, December 16 at 6:00 P.M., with new episodes debuting Saturday mornings on Cartoon Network, starting December 24. If you want a sense of how out-there the new series can be, check out the synopsis for “Shazam Slam”:

In “Shazam Slam,” the villainous Black Adam battles Batman on the Rock of Eternity and unleashes a horde of Djinn determined to turn the Earth back to its pre-human, volcanic state. Affected by the otherworldly powers of these primordial monsters, Batman becomes possessed and is turned into a giant flying Batmonster laying waste to the Hall of Justice, with only Superman capable of taking the fight to the Dark Knight. One by one, the Justice League - with the help of Shazam (voiced by Sean Astin) and The Wizard (voiced by Carl Reiner) - must hunt down and defeat each Djinn in order to yet again save the world from destruction.

Cartoon Network

In addition to the clip above, and already-announced returns for original Batman voice actors Kevin Conroy and Mark Hamill, the new Justice League Action features among its voice cast Patton Oswalt (Space Cabby), Ken Jeong (Toyman), Hannibal Buress (Mr. Terrific), Diedrich Bader (Booster Gold), James Woods (Lex Luthor), Rachel Kimsey (Wonder Woman), Jason Lewis (Superman), John DiMaggio (Lobo), Sean Astin (Shazam), and even Legend of Korra star P.J. Byrne as Firestorm.

So reads the synopsis:

Batman, Superman and Wonder Woman lead the DC Comics Super Heroes against their most infamous foes in adventures packed with relentless thrills, fun and action. No need to wait for the good stuff to start, each eleven-minute episode jumps in with lightning-paced action and heroics. Whether defending the Earth, facing invaders from space, or battling the bizarre forces of magic, the always-rotating team of Justice League heroes, are up to any challenge.

Teen Titans Go! alum Sam Register will act as the show’s executive producer, along with Justice League and Batman Beyond vet Butch Lukic, Batman: The Animated Series’ Alan Burnett and Green Lantern: The Animated Series vet Jim Krieg as producers.

In the meantime, check out the first Justice League Action trailer below.