Summer heat is pounding the American Southwest. After a close call with an armed intruder, Jason Hawk decides that his old truck isn't up to the task of protecting his property line. He and his father turn to a heavy duty junker that they call "The Beast," but getting it into service in 115 degree heat will be no small task. In Utah, David Holladay searches for a remedy to the contaminated water he mistakenly drank before it's too late. In Texas, Howdy Fowler races the sun to corral a pair of wild longhorns, and in New Mexico, primitive weapons expert, Charlie Acuna sets off on the challenge of a lifetime, trying to survive in the state's High Desert.