The gang hatches a plan for Gibbs to pose as Fyffe and one of his men to pose as Larson. They deliver Fyffe to Yuma prison, claiming he is Luther Gibbs. In spite of Fyffe's insistence that he is in fact the federal marshal, he finds himself as prisoner number 109. Now, in addition to fearing that Gibbs will get to the money and get away, Fyffe must survive in a prison where he is sure that someone he has previously sent to prison will recognize him and exact their revenge.