Corporal Wagner, a young soldier in the American Civil War, is understudy to Sergeant Sam Slagle. They are charged with moving a camel train of supplies from Fort Tejon, across the Mojave Desert and down the Colorado River to Fort Yuma. The camel detachment that was supposed to make the trip has been ambushed and the camels stolen. There is no doubt as to where they are headed. A part of the camels' load involves gold coins being sent to Yuma to pay...