"Pain Factor" -- the reality TV game show so controversial, it's been banned around the world! Today, eleven desperate men will travel to a desert island to compete in a series of outlandish challenges that will leave one of them rich and the rest of them dead. Among the competitors, a certain "Merc with a Mouth," who's been hired to investigate the mysterious disappearance of a millionaire's son. The trail ended here for Junior, but will it for Deadpool? Not if he has anything to say about it. After all, nothing brings out Wade's competitive streak like cold, hard ca--I mean, justice.