A paranoid, secretive surveillance expert has a crisis of conscience when he suspects that the couple he is spying on will be murdered.
When an alien takes the form of a young widow's husband and asks her to drive him from Wisconsin to Arizona, the government tries to stop them.
From Wichita to Dodge City, to the O.K. Corral in Tombstone, Wyatt Earp is taught that nothing matters more than family and the law. Joined by his brothers and Doc Holliday, Earp wages war on the dreaded Clanton and McLaury gangs.
