Young Justice (2010)

S1E19 Misplaced

In a shocking turn of events, all adults on Earth vanish, leaving just the team, Zatanna, and Billy Batson to confront the five mightiest sorcerers. As they face daunting challenges, Zatanna decides to formally become a member of the team. Meanwhile, Zatara steps into the role of the new Doctor Fate, embracing his newfound responsibilities and powers.