Mix is Grant Malvern, a rancher who befriends scientist Quentin Durant (Tom S. Guise) after rescuing him from a trio of Chinese crooks. The crooks want to find Durant's Arizona gold mine, and the map to the location is contained in a pair of rings. After the crooks track down Durant and kill him, one of the rings winds up with Durant's daughter, Helen (Adams), and the other falls into Malvern's hands.

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Tom Mix

Grant Malvern

Claire Adams

Helen Durant

Donald MacDonald

Fabian

Hector V. Sarno

Martinez (as Hector Sarno)

Edward Peil Sr.

Sun Yat (as Edward Peil)

George Siegmann

'Red' Pollock

Edward Jobson

Commodore Simpson

Ethel Wales

Miss Higgins

Tony the Horse

Tony, Tom's Horse

Tom Guise

Quentin Durant (as Tom S. Guise)

Minna Redman

Mrs. Malvern

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