Kirby Frye a former Confederate officer but now a Union Cavalry scout is sent into Montana
territory to locate and retrieve three Gatling Guns stolen from the U.S. Arsenal by outlaws
believed to have taken them west to sell to the Soiux and Cheyenne. The trail leads him to Red
Bluff where aided by Claire Corville he and the audience discover together and real quick
like that Martin Gavin a supposedly-honest operator of a freight line has the guns and
intends to exchange them to the Indians for furs.