In The Last Track, a police detective recruits Mike to help find an asthmatic boy lost in the dense woods surrounding a dude ranch in Montana. An unwitting murder witness, the boy burrows ever deeper into the rugged terrain, fearful of being found. As Mike and a local officer search for the boy, the killer follows them. While the investigation expands, Mike's ex-wife, a well-connected journalist, uses her contacts to unravel the truth behind the murder. Her discoveries threaten to snare them all in a treacherous conspiracy.