From the preview:
Sometimes the Villains of Pulp City need pure brute force. When sheer power and violence without a restraint is called for the Villains find Cro Mag. Where he comes from is anyone's guess. He could be one of Mysterious Man's creations. A creature from another time or dimension trapped in Pulp City by fate, or sinister design. Or possibly just another poor soul born different and left to find their own path. Whatever the case when Cro Mag appears destruction follows.