With Jigsaw (Tobin Bell) and his assistant Amanda (Shawnee Smith) dead and Detective Kerry (Dina Meyer) murdered two FBI profilers Agents Strahm (Scott Patterson) and Perez (Anthena Karkanis) join the precinct.There job is to help Detective Hoffman (Costas Mandylor) piece together the puzzle of Jigsaw'a latest set of victims.But when SWAT Commander Rigg (Lyrig Bent) is kidnapped the team have hust ninety minutes to solve a series of traps or face the deadly consequences.As the pursuit for Riggs continues Hoffman and the FBI unearth evidence that leads them back to Jill (Betsy Russell), Jigsaw's ex-wife.View the Saw IV gallery.