They wanted to hang Giles Clanahan for a murder committed by Jake Shockley. To clear his name and bring Shockley to justice, Clanahan flees across the Arizona desert and stumbles across a plot. A band of ex-Confederate soldiers, led by Hammond Cole, plans to seize a valley known as Canoga and drive off the new settlers living there. The only man aware of the plot is Clanahan, and he must play out a bloody game on the open range.