
Plot
A story of the Michigan State Police and the strong sense of loyalty and duty it instills in its men. It follows the career of a newly-inducted rookie, Ross Martin, who has joined the force at the urging of his sweetheart, Mary Adams. Martin soon distinguishes himself by his bravery in the apprehension of criminals. But when the leader of a gang of bank robbers falls into his hands and then escapes, because of carelessness on Martin's part, he is suspended from the force.
Trailer
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Cast

Fred MacMurray
Trooper Ross Martin

Ann Sheridan
Mary Adams

Guy Standing
John Vilker, alias Prof. Anthony

Marina Koshetz
Nan Vilker

Dean Jagger
Trooper Jim Burton

William Frawley
Training Sgt. Barrel

Frank Craven
Sheriff Peter Arnot

Nora Cecil
Granny Adams

Charles C. Wilson
Trooper Captain Ryan

Joe Sawyer
Whitey, burly henchman

Mack Gray
Smoke, thin henchman

Eddy Chandler
Trooper Haynes, Car 45

Robert Kent
Trooper Blatzky

John Howard
Trooper Carney

Alfred Delcambre
Trooper Jamison

Howard Wilson
Dutch

Hector V. Sarno
French Charley

Eddie Dunn
Mack

Jack Cheatham
Radio Sgt. Meyers

Russell Hopton
Dispatch Operator Harper