From Redrock, Arizona to the Yuma state penitentiary is a hot, dusty trip by Concord stage. And for an innocent man accused of bank robbery and murder the strain is unbearable. Drawing ever closer to life in a prison cell, John Flint D'Arragon breaks away from Marshal Nick Imlach and, with pretty hostage Fran Parker, sets out to clear his name. Suddenly involved in a desperate race across the desert, he finds himself pursued by lawmen, Fran's irate father, and the mysterious, violent Pike Rickman. D'Arragon is drawn relentlessly back to the waters of the San Pedro where, in a blazing six-gun climax, he must face the outlaw Rickman and gain his freedom.