An escaped convict becomes the protector for a woman and her son. Robert Penn is a career criminal and confidence man. He escapes from a penitentiary in New York State and is on the run to Mexico. Penn is a hardened loner who will not let anyone stop him on his path to freedom. A woman and her son intrude on his escape plan. They are being hunted by ruthless and dangerous killers who plan to murder them. The three of them run for their lives. At the final showdown Penn faces down the killers with the sure knowledge that he will be the first to die.