When Simon Stagg plans to open a portal to the Dark Multiverse, Mister Terrific arrives too late as Stagg is using a person named Rex Mason to power the portal for high amounts of Nth Metal. Mister Terrific then brings Plastic Man to assist him. Terrific convinces Stagg to close the portal, but not before the trio are flung into outer space and are soon met up by Phantom Lady. Meanwhile, Rex Mason has suffered some serious changes to his body following being used to power the portal. But that’s the least of their problems as an alien invader named Algon arrives on to the scene.
