Formed by the United Nations, the Justice League International consists of Batman, Rocket Red, Vixen, a Green Lantern, and other heroes from around the world, led by Booster Gold. When their first mission to investigate unexplained seismic activity in Peru goes unexpectedly wrong, however, Booster fails to understand the abilities of his team members and to inspire them to depend on his leadership, placing both the team and their mission in jeopardy.