Max Lord calls Martian Manhunter and Captain Atom into his office and explains that a super villain is after him and he needs help. At Justice League International headquarters, an alarm comes in from Martian Manhunter and Captain Atom. The Leaguers head to Max's office. They discover several mechanical constructs and fight their way to Max's office. They fly away in their jet and a giant robot rises, challenging them. The giant is recalled to its base and the Leaguers follow it to come face to face with Metron.