: Batman, Wonder Woman, and Superman face off against Mongul . This episode is based on a famous story by writer Alan Moore .
Following the events of the Thanagarian invasion, the Justice League expands its roster from its seven founding members to dozens of heroes across the globe. The first season of Justice League Unlimited explores this massive expansion through a mix of episodic missions and an overarching narrative involving a growing conflict with a secret government agency known as Project Cadmus . The Expanding Universe Justice League Unlimited - Season 1 ...
The series begins with Superman addressing the new league aboard a rebuilt Watchtower, emphasizing that while their numbers have grown, their mission to keep the universe safe remains the same. Early missions highlight characters like , who initially refuses to join because he wants to stay close to the "little guy". Other standout stories include: : Batman, Wonder Woman, and Superman face off against Mongul