It should have been a routine job for US Marshal Alvin LeRoy—escort two captured bank robbers to Yuma Territorial Prison. It turned out to be anything but.

As they’d tried to make their escape after the robbery, the outlaws ran down and crippled Daniel Machin, brother of wealthy rancher Lawrence Machin.

The Machins now wanted to take their own brand of revenge.

Followed by a trio of men determined to take his prisoners away from him, LeRoy also discovered that he had a bounty man named Lang on his trail. Lang was working for the bounty offered by Lawrence Machin.

And so simple transportation job became a nightmare for LeRoy. With enemies to every side, he had to call on every ounce of strength left in him just to keep on going. Leroy didn’t have any quit in him. He was tough, determined … relentless.