"David Marshall Williams is sent to a prison farm where he works in the tool shop and eventually develops the precursor of the famous M-1 Carbine automatic rifle used in World War II."
James Stewart
as Marsh Williams
Jean Hagen
as Maggie Williams
Wendell Corey
as Capt. H.T. Peoples
Carl Benton Reid
as Claude Williams
Paul Stewart
as 'Dutch' Kruger
Otto Hulett
as Mobley
Rhys Williams
as Redwick Karson
Herbert Heyes
as Lionel Daniels
James Arness
as Leon Williams
Porter Hall
as Sam Markley
Fay Roope
as District Attorney
Ralph Dumke
as Andrew White
Leif Erickson
as Feder
Henry Corden
as Bill Stockton
Howard Petrie
as Sheriff
Stuart Randall
as Tom Vennar
Dan Riss
as Jesse Rimmer
Robert Hyatt
as David Williams (as Bobby Hyatt)
Marlene Lyden
as Mary Eloise Williams (uncredited)
Lovyss Bradley
as
Frank Richards
as Truex
Richard Thorpe
Director
Art Cohn
Screenplay
Story
Walter Plunkett
Costume Design
Newell P. Kimlin
Editor
John Truwe
Makeup Artist
Conrad Salinger
Music
Sydney Guilaroff
Hairstylist
William Tuttle
Makeup Designer
William C. Mellor
Cinematography
Al Jennings
Assistant Director
Edwin B. Willis
Set Decoration
A. Arnold Gillespie
Special Effects
Warren Newcombe
Eddie Imazu
Art Direction
Douglas Shearer
Recording Supervision
Armand Deutsch
Producer
Cedric Gibbons
Ralph S. Hurst