When one of Regan's snouts complains that his girlfriend's recent suicide was murder, the flying squad detective feels compelled to investigate. He uncovers a conspiracy that reaches the heart of the government, and finds himself fitted up, suspended and under the scrutiny of Special Branch.
En un pueblo del Oeste, el sheriff (Jack Warden) recibe la orden de localizar y capturar a dos fugitivos por su participación en el atraco a un banco: son Arche Deans (Gregory Peck) y un mestizo apodado “Billy dos sombreros”. Hay una recompensa de 100 dólares para quien los capture vivos o muertos.