Jigsaw returns. The brilliant mastermind behind the cruel identity is back for another round of his terrifically live or die games. When a new murder victim is found with all the signs of Jigsaws hand, Dectective Eric Matthews begins to investigate the full story and apprehends Jigsaw with a minimum lack of effort. Only for Jigsaw, getting caught is only one of the many parts of his plan.

Eight more of his victims are already fighting for their lives its time for Eric Matthews to join, as the latest pawn on his vicious chalkboard. Serial killer Jigsaw locks a group of eight unlucky people in his booby trapped shelter and they must find a way out before they inhale too much of a lethal nerve gas and die. But they must watch out, for the traps Jigsaw has set in the shelter lead to death also.