“Balance”
As the League suffers from the members' personal lives (including the death of Aquaman's son, the death of the Black Canary's mother, the trial of the Flash, and Green Lantern's return from space), the earth is invaded by an alien race called the Debris. Only through sheer luck do the remaining members of the League triumph. But it's not enough for Aquaman, who dissolves the League and vows to rebuild it with new members.