Justice League Action (2016)

S1E7 Zombie King

Batman joins forces with John Constantine, Zatanna, and Swamp Thing to confront Solomon Grundy, who is attempting to summon an army of the undead. Together, they must navigate the dark magic and sinister plans at play, relying on each other's unique abilities to thwart Grundy's nefarious scheme and protect Gotham from a rising tide of zombies. As they face supernatural challenges, the unlikely allies discover the strength of their combined powers in a battle against evil.