When only a little black puppy, Trueboy got lost and was forced to fend for himself in the dangerous, wolf- infested cattle country. He had only his fast-growing strength and his instinct for self-preservation to aid him in his struggle against starvation and his enemies. His great fight with the "Old Roarer" and his joyous reunion with his master make the climax to a gripping story in the tradition of Jack London's The Call of the Wild.