Back in the 1800s, Wild West legends like Billy the Kid, Doc Holliday and Wyatt Earp frequented the towns along the Santa Fe Trail, and so did everyday outlaws, gamblers, and thugs. The Diggers are headed for two spots on the route — one of the violent, original sin cities of the West and a long-lost fort that helped keep the peace. They’re in search of a wild piece of New Mexican history.