The Fortress of Solitude's defense systems are malfunctioning just as Superman is busy investigating an incredible off world threat. The source appears to be the Phantom Zone Projector! Superman needs trusted heroes to help check out the disturbance! Meanwhile Lex Luthor, having inserted listening devices in the Fortress during the Fortress raids long ago, is calling on villains to come play while Superman's away, in the new 4-Player Operation, The Phantom Zone! Unlock the Elite Mode, gain access to new feats, collections and gear! Free to access for Members!