Jim Hardie is sent to Monterey to help catch the Vasquez gang. The Sheriff captured one of the gang but he refuses to talk. Jim decides to take on the persona of the outlaw Rattlesnake Jim with a bounty on his head to work into the gang.
With the gold rush came a rush of outlaws as well. Jim Hardie was sent by Wells Fargo to Monterey to catch one of the outlaws named Vasquez who has been very successful. Sheriff Morris has captured a member of the gang named Moreno but he refuses to talk. Sheriff Morris asks Jim if he has any ideas which of course he does. He asks the Sheriff to post some wanted posters for Rattlesnake Jim with his own picture on the poster. They create a sham stage coach holdup where the Sheriff nabs Jim and locks him up next to Moreno. He tells Moreno he is going to escape which he does taking Moreno with him who leads him to Vasquez. However, due to the protection Vasquez has, Jim can't arrest them without being killed himself. Written by