With the army after him and his partner deserting, Reb decides that a change of scenery would be nice so he heads for Wyoming with Dave.

In 1869, the United States begins a railroad mail service to the West Coast which proves highly tempting to train robbers, in particular an organized gang with one of the mail's supposed guardians ...

With the Army after him and his partner deserting, Reb decides that a change of scenery would be nice so he heads for Wyoming with Dave. To show his gratitude to Dave, he steals his horse and gun ...

Dave Saunders and his sidekick Chito, cowhands looking for work, arrive in Sundown Valley, Wyoming just in time to stop sheep ranch foreman Jess Rawlins from lynching cattleman Tug Caldwell.