He'd finally made it to retirement, but how could he know that a flat tire would lead him to an ominous discovery—throwing him back into a life of violence?

After thirty years of being a cop, Jason Douglas thinks he's through with dead bodies, bloody victims, and nightly gunfire. So when he stops to fix a flat tire in the middle of nowhere, the last thing he expects is to find skeletons in the desert. Nor does he expect to be pulled into a small West Texas sheriff's office as the only available CSI man. Still, he reluctantly agrees to help the deputies process the crime scene. But when people around him start dying brutal deaths, Jason knows things aren't what they seem. Can he find the killer before it's too late, or will he and his wife Sonya become the assassin's next victims?