Complete story — includes the ending
The founding members of the Justice League, with the exception of Batman, surrender to the government due to pressure from the President and to show they are not guilty. In the middle of a battle between the rest of the League and the army of Ultimen, Supergirl and Steel battle Galatea to keep her from destroying the Watchtower. Ultimately, Supergirl defeats Galatea and the League prevails. When confronted by Batman, Waller realizes that Luthor was behind the attack and that he framed the League. They all go to confront Luthor, and Waller destroys his project. Before Luthor can be apprehended, Brainiac emerges from inside of him.
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, List of Justice League Unlimited episodes. HTML formatting and reference markers removed. · Content license