The Avenger plot
"Blood-tingling all-action western!"
Joaquin Murietta, son of a wealthy Spanish family, comes into conflict with three prospectors. When he returns home it is found to have been attacked by the three prospectors and his father is dying. Joaquin visits his brother in a mining camp and informs him of the events. The three prospectors meanwhile have made plans to get their hands on the rich gold mine of the Muriettas, they attack the camp and Joaquin is injured. He has to watch as the bandits hang his brother. The three bandits do not enjoy their mine for long. A mysterious bandit called "The Black Shadow" raids their gold transports.