Joe Baker writes Cheyenne to come visit as he has a business proposition. With the help of Sam Wilson, they're going to ride down just below the Mexican border and round up thousands of mustangs that are running wild. At $30 a head, they would all clean up. When Cheyenne shows up, Joe is too sick to be much of a partner but Cheyenne is still willing to help out his friend. Victoria, however, is not so generous. They need another worker and she insists that the wages come out of Joe's share. She also insists that she is coming along, never mind the heat, the load of money she insists they carry and that Chato, the leader of a band of mescaleros, is not too fond of folks coming into his territory and making off with a few mustangs.