As was customary in his late Monogram westerns, Johnny Mack Brown plays an undercover agent in Colorado Ambush. Brown is sent to Colorado to stem the activities of a particularly vicious outlaw gang
Johnny Mack Brown
Myron Healey
Chet Murdock
Lois Hall
Janet Williams
Tommy Farrell
Terry Williams
Christine McIntyre
Mae Star
Lee Roberts
Henchman Gus
Marshall Bradford
Ben Williams
Lyle Talbot
Sheriff Ed Lowery
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