Ma Barkers Killer Brood

Plot

To the horror of her husband, Kate Barker, known as "Ma," teaches her four young sons to steal money from the collection plate in church. Her husband tries to convince her to stop using her sons to commit crimes, but is ignored. Ma expresses her contempt for "sissies" and says that "guts" is the only virtue. Her husband leaves her when their sensitive son Herman is arrested after Ma forces him to rob a fun fair. After this, the local sheriff runs Ma Barker and her boys out of town.

Years later, she has become a hardened criminal along with her sons. She is known in the underworld for her ruthlessness and efficiency in planning "jobs." At a party she hosts for leading criminals Machine Gun Kelly, encouraged by his brash girlfriend Lou, claims he can work without her. Ma is dismissive. After Kelly's independent attempt at a kidnapping fails, Ma belittles Lou. Lou plans revenge. Meanwhile psychopathic killer Alvin Karpis is introduced to the gang. Ma uses him to get rid of weaklings and threats. Ma's drunken new husband Arthur Dunlop is murdered when he blabs about their activities, as is corrupt mob-doctor, Dr. Guelffe.

After a failed robbery Herman shoots himself to avoid capture by the police. Ma is embittered, but plans a major kidnapping that will make the gang rich. She kidnaps wealthy banker, Mr. Khortney. Lou and Kelly discover Ma's hideout and plan to take the kidnap victim from her by force, to collect the ransom themselves, but they are outmaneuvered when Ma reveals she has Baby Face Nelson and John Dillinger with her. The kidnap money is collected, but now the FBI are after the gang. Knowing that Ma's son Doc Barker is attracted to her, Lou seduces him in order to bring him over to her side, but her plan is foiled when the FBI arrest him. They discover a letter that reveals Ma's whereabouts. At a house with her son Fred, she is surrounded by four agents. Fred wants to surrender, but she refuses, and guns down two agents with a Tommy gun. The other agents open fire, killing Fred. Ma strides out with a blazing gun, and is cut down.