How do you hunt a killer who can go back in time and make sure you're never born? A police pursuit kicks Sergeant Jack Redding of the Florida Highway Patrol and his trainee, Julie Karras, into a shoot-out that ends with one girl dead and another in cuffs, and the driver of the SUV fleeing into the Intracoastal Waterway. Redding stays on the hunt, driven by the trace memory that he knows that running woman--and he does, because...