A sequel to Doc is based on the true events of the gunfight at the O.K. Corral and Wyatt Earp's survival against a backdrop of volatile politics in 1881 America.

This was America in 1881: a deeply divided nation; vicious politics; a shamelessly partisan media; a president loathed by half the populace. On October 26, when Doc Holliday and the Earp brothers faced off against the Clantons and the McLaurys in Tombstone, Arizona, Wyatt Earp was the last man standing, the only one unscathed. The lies began before the smoke cleared-- this is the story of the woman behind the myth: Josephine Sarah Marcus, who loved Wyatt Earp for forty-nine years and who carefully chipped away at the truth until she had crafted the heroic legend that would become the epitaph her husband deserved.