[1] As described in a film magazine review,[2] Brian Delaney, returning one evening from herding the cattle, finds his sister Ruth dead on the floor of the little cabin that served as their home.

To discover the murderer of his sister, he decides to turn bandit and hides his real identity, soon becoming known and feared throughout the countryside as the “Yellow Seal.” In a little town near the foothills, the gambling house of Howard Steele is in full operation.

Suddenly the Yellow Seal appears, rifles the cash drawer, demands the combination of the safe and, after cleaning it out, locks Steele in it and departs.

He turns to face Teresa, the daughter of Don Esteban, a Spanish rancher who has allowed himself to get into Steele’s power through gambling debts.

They stand there for a moment in the moonlight, and then as the crowd swarms out, the Yellow Seal leaps on his horse and is away, after giving her the slip with the combination of the safe, so that Steele may be released.