Tombstone, Arizona, is a town with some trouble. A phantom legion of former Confederate soldiers is continuing to fight the war its own way, and it's destroying the mining communities nearby. Federal agent Alexander Thorne has been assigned to investigate a raid on a military arms shipment, believed to be the work of the legion. He teams up with Paddy Burnett, an undercover operative from Wells Fargo, which has been suffering losses at the hands of a mysterious band of road agents. And all the while, the town is torn between Sheriff Johnny Behan, who some say is an ally of the outlaws, and the infamous Earp brothers, who do their own law enforcement. With trouble like this on all sides, it won't take much before Tombstone explodes like a stick of dynamite.