- Directors: David Hackl
- Producers: Mark Burg, Oren Koules
- Writers: Patrick Melton, Marcus Dunstan
- Genres: Crime, Horror, Thriller
- Actors: Tobin Bell, Julie Benz, Meagan Good, Costas Mandylor, Scott Patterson, Betsy Russell
Seth Baxter (Joris Jarsky), a convicted murderer who was released early from prison on a technicality, is chained to a table beneath a pendulum blade. A videotaped message informs him that in order to survive, he must crush his hands by putting them into two presses and pushing the buttons inside. Even though he does so, the pendulum swings down and slices him in half. The fact that the trap was inescapable marks it as a creation of someone other than John Kramer (Tobin Bell).
In a scene from the end of Saw IV, Agent Peter Strahm (Scott Patterson) enters the room containing the corpses of John Kramer, Amanda Young and Lynn Denlon, and shoots Jeff Reinhart (Angus Macfadyen) dead in self-defense. As he examines Jigsaw’s corpse, he is trapped in the room by Lieutenant Mark Hoffman (Costas Mandylor). Discovering a hidden door that leads into a passage and a microcassette that urges him not to proceed any further, he moves down the passage and is attacked by a figure in a pig mask. Regaining consciousness, he discovers that his head is trapped in a small glass box that begins to fill with water. A self-administered tracheotomy using a pen keeps him breathing until the police arrive at the Gideon meatpacking plant, where Hoffman emerges carrying Jeff’s daughter Corbett (Niamh Wilson), claiming that they are the only survivors until Strahm is brought out alive as well.
Strahmâ€™s investigation brings him to a small underground room that contains a transparent box full of glass shards. A recorder inside the box delivers a message from Hoffman: Strahm will have to trust him and get in the box if he wants to survive. Instead, Strahm stops the tape short and ambushes Hoffman when he enters the room, eventually throwing him into the box and closing it. When the door to the room suddenly slams shut and locks, Hoffman advises Strahm to finish the tape. As the box sinks into the floor, the tape explains that if Strahm does not comply, he will die in that room with Jigsaw’s legacy becoming his own. Strahm then attempts to escape the room when the walls begin to move inward, but is eventually crushed to death while Hoffman watches from below.