Fifty-seven people died in the Hawthorn train crash. The State called it human error. Case closed.

Eighteen months later, human remains surface miles from the wreck. Disgraced journalist Ethan Hale discovers a chemical trace tying the body to the crash site, evidence that someone did not just respond to the disaster.

Someone erased it.

As Attorney General Margaret Harrington is pulled into the investigation, the official story surrounding the crash begins to fracture, and the search for answers carries consequences that reach far beyond the case itself.

At the center of it all is a man known only as Shepherd. He does not leave evidence. He leaves bodies.