Wyoming game warden Joe Pickett, called in to help investigate a massive explosion in the forests of Twelve Sleep County in which a well-known environmental activist is presumed to have died, puts his own life in danger when he refuses to accept the verdict that the incident was an environmental publicity stunt gone wrong.

"The past comes back to haunt game warden Joe Pickett and his family with devastating effect ... The plane circled in the dark. Joe Pickett could just make out down below a figure in the snow and timber, and then three other figures closing in. There was nothing he could do about it. And, Joe knew that he might be their next target. The Cates family had always been a bad lot. Game warden Joe Pickett had been able to strike a fierce blow against them...

Having hidden the truth about a past colleague's violation, former Special Forces agent Nate Romanowski is targeted by a determined killer who threatens Joe Pickett's life as part of a violent plot.

"Wyoming game warden Joe Pickett has two lethal cases to contend with in the electrifying new novel from #1 New York Times-bestselling author C. J. Box. Wyoming's new governor isn't sure what to make of Joe Pickett, but he has a job for him that is extremely delicate. A prominent female British executive never came home from the high-end guest ranch she was visiting, and the British Embassy is pressing hard. Pickett knows that happens sometimes--these...

Describes how the wildlife detectives at the National Fish and Wildlife Forensics Laboratory in Ashland, Oregon, analyze clues to catch and convict people responsible for crimes against animals.