While the senior Leaguers struggle to respond to the mysterious main gun firing, Amanda Waller orders Galatea to lead a full attack on the Justice League.

The Justice League charter members must battle the combined Lex Luthor/Brainiac menace alone.

Lex Luthor is rescued from prison by a new villainous organization - the Legion of Doom!

Roulette returns with a new version of Metabrawl...and plans to use the Justice League to boost her ratings.

The Justice League take on their opposite numbers in the Legion of Doom in a final battle revealing the Legion's secret sponsor and the mystery behind their ultimate plans.