The resurrected Darkseid leads his force on an all-out attack on Earth in revenge against Superman and the Justice League and Secret Society must join forces to stop him.
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.
When Lex Luthor sends the Secret Society headquarters into outer space to find the remains of Brainiac, Grodd breaks free of his prison to lead a mutiny.
Superman battles Doomsday in the heart of a volcano. Doomsday is revealed to be a modified clone of Superman. Batman probes the Cadmus conspiracy to destroy the Justice League.