20-year old Don Lindon is released from prison for robberies committed while riding with the Carlos Marina gang. Don believed that Marina had saved his life 6 years earlier after his parents were killed by Indians. But Don doesn't know that it was actually Marina's gang, disguised as Indians, that did the ambush. And Don also doesn't realize that his father escaped and is now a marshal trying to find the Marina gang. Both Bob and his father wear identical gold lockets around their necks. Don rejoins the gang after they ambush and wound Marshal Lindon. The Ranger and Tonto find him and fix his wound. They join forces to stop the Gang from robbing the bank. It's a dangerous situation for everyone. Will Don learn the truth before it's too late?
Darryl Hickman plays 20-year old Don Lindon. His younger brother Dwayne plays 14-year old Don in a flashback detailing the ambush of the Lindon family. In a few years, Dwayne would become a major TV star in his own series, "The Many Loves of Dobie Gillis."
Greta Grandstedt plays Mrs. Lindon in the flashback and it's her picture inside the two lockets. At the age of 14, Greta was convicted of shooting her boyfriend and spent a term in the girls reformatory. She led an adventurous life before and after she became an actress. Greta was married 7 times, 5 of which ended by annulment. Greta never seemed to worry about divorcing her previous husband before marrying the next one. She had a successful Hollywood career in supporting roles.