With Rowdy, Quince, Hey Soos, and Nolan who was married to one of them earlier as their reluctant guide, a breakaway group of Cheyenne Indians flee an oppressive reservation and head for Mexico - with a posse in hot pursuit.
Indians stampede the herd and make off with 30 steers, so Rowdy, Pete, Quince and Hey Soos follow in pursuit. The Indians had been dissatisfied with their hot, dry, dusty reservation up North, so they are trying to cross the Rio Grande into Mexico to find more hospitable land, land it so happens Pete had told them about when he had been married to the Chief's daughter and was living with the Indians. Lawmen are also trying to force the Indians to return to the reservation. Pete has to (1) convince Rowdy, Quince and Hey Soos (who have been captured by the Indians) that the Indians have been wronged and are peaceful, (2) defeat an upstart bellicose Indian brave intent on taking over and killing the drovers, and (3) convince the Chief to return most of the steers and safely cross the Rio Grande. Written by