Legends, Part 1
S1, E16: An explosion from a giant robot throws Green Lantern, Flash, Martian Manhunter and Hawkgirl into an alternate reality, where they meet the Justice Guild of America.

S1, E16: An explosion from a giant robot throws Green Lantern, Flash, Martian Manhunter and Hawkgirl into an alternate reality, where they meet the Justice Guild of America.