After 3 Gatling Guns are stolen from a Montana army arsenal, a Cavalry scout is dispatched there to retrieve them before the thieves can sell them to the Indians.After 3 Gatling Guns are stolen from a Montana army arsenal, a Cavalry scout is dispatched there to retrieve them before the thieves can sell them to the Indians.After 3 Gatling Guns are stolen from a Montana army arsenal, a Cavalry scout is dispatched there to retrieve them before the thieves can sell them to the Indians.