Ma Barker and her four sons terrorize the 1930s South and Midwest with a string of kidnappings, robberies and murders, and even get to work with such famous criminals as John Dillinger and Baby Face Nelson.

Lurene Tuttle
as Ma Barker

Tristram Coffin
as Arthur Dunlop

Paul Dubov
as Alvin Karpis

Nelson Leigh
as George Barker

Myrna Dell
as Lou

Victor Lundin
as Machine Gun Kelly

Don Grady
as Herman as a Boy

Roye Baker
as Lloyd Barker

Ron Foster
as Doc Barker

Michael Smith
as Fred - as a Boy