Hired by some lonely miners to bring them brides from the East, Luke is unaware that one of the women is Jenny, who has escaped from prison and is intent on joining her gang and robbing banks... starting with the one in Purgatory. After her gang attacks Luke's wagon train, Jenny is appalled at their behavior and impressed by Luke's. She decides to go straight, and by the time they reach Purgatory Jenny vows to be a perfect bride. When her groom is quarantined with the Fever, Luke agrees to be the proxy. Jenny tries to stop the gang from robbing the bank. When Luke finds out, he thinks she has really joined them and tries to stop them. Hurt that Luke doubted her, she let's the gang tie him to a box of dynamite with a lit fuse...Has Luke's luck run out??