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.
Claire Adams
Helen DurantHector V. Sarno
Martinez (as Hector Sarno)Tom Mix
Grant MalvernEdward Peil Sr.
Sun Yat (as Edward Peil)Donald MacDonald
FabianEthel Wales
Miss HigginsGeorge Siegmann
'Red' PollockTom Guise
Quentin Durant (as Tom S. Guise)