The film starts with a chase between police and a criminal named Edgar Munsen (Josiah Black). After crashing his car against police cruisers, Edgar runs to a rooftop and is surrounded by police as he holds a trigger in his hand. He asks for Detective Halloran (Callum Keith Rennie), who shows up as the other cops have their guns drawn on Edgar. He tells Halloran that he has to decide who will die, or else Edgar himself will die. Halloran takes out his gun just as Edgar pulls the trigger. The cops blow off Edgar’s hand and destroy the trigger, but someone has shot Edgar in the chest against Halloran’s orders. A weakened Edgar tells Halloran that the game has begun. The scene then moves to a room where five people – Anna (Laura Vandervoort), Ryan (Paul Braunstein), Mitch (Mandela Van Peebles), Carly (Brittany Allen), and an unnamed fifth person – are chained to a wall with buckets on their heads. A recording plays from John Kramer/Jigsaw (Tobin Bell), explaining that in order to survive, blood must be given. The chains then start to pull the group toward the wall where buzz saws are sticking out. As they get closer, Anna cuts her arm and is freed. She tells the others to cut themselves to free themselves. Ryan and Mitch follow suit while Carly gets cut from behind. The fifth person is unconscious and realizes too late what to do, and he is seemingly killed..