A junkman does business with the Dead End Kids: Frankie, Squirt, Spike, Goofy, Fats, and Bugs. When the boys ask for a $20 payoff, "Junkie" says "Five is all you'll get. Now take it and get out of here." In a rage, Spike strikes the man in the back of the head with a hard object, and the junkman falls to the floor and doesn't move. When Judge Clinton cannot convince the boys to divulge which one struck the damaging blow, they are all sent to reform school.
The harsh warden of the reformatory, Morgan, inflicts discipline at the school and flogs Frankie after he tries to escape. The superintendent of the state reformatories, Mark Braden, visits the school and finds evidence of Morgan's subtle cruelty, as in feeding his new inmates poor-quality food. He then visits Frankie in the hospital ward, finding him untreated and the doctor inebriated. As a way of starting over, he fires the doctor, Morgan, and four ex-convict guards, while retaining the head guard, Cooper. Braden takes charge of the reformatory himself and wins over the boys' cooperation by considerate treatment, while romancing Frankie's sister, Sue Warren.
Meanwhile, Cooper is afraid that Braden will learn of Morgan's embezzlement of the food budget, which would implicate him as well. He learns that Spike is the one who dealt the blow to the junkman and blackmails him. He gets him to tell Frankie that Braden's generous treatment is due to his sister's acceptance of Braden's attentions. Although untrue, it causes the kids to escape from the school in Cooper's car with his gun. They go to Sue's apartment, and Frankie climbs the fire escape with the gun to confront Braden, but Sue and Braden dispel Frankie's suspicions.
Meanwhile, Cooper "discovers" that the kids have escaped, and Morgan calls the press to discredit Braden and get him fired. But, Braden drives the boys back to the reformatory and gets them into their beds, before the Commissioner, alerted by Morgan, arrives for an inspection with the police in tow. Their plot foiled and their fraud uncovered, Morgan and Cooper are arrested. The boys are subsequently paroled into the care of their parents.
Directed by Lewis Seiler
Written by Crane Wilbur
Vincent Sherman
Produced by Bryan Foy
Starring Humphrey Bogart
Gale Page
Billy Halop
Bobby Jordan
Huntz Hall
Leo Gorcey
Bernard Punsly
Gabriel Dell
Charles Trowbridge
Cinematography Arthur Todd
Edited by Terry Morse
The Dead End Kids
Billy Halop as Frankie Warren
Bobby Jordan as Lester "Squirt" Smith
Huntz Hall as Richard "Goofy" Slade
Leo Gorcey as Charles "Spike" Hawkins
Bernard Punsly as George "Fats" Papadopolos
Gabriel Dell as Timothy "Bugs" Burke
Additional cast
Humphrey Bogart as Deputy Commissioner Mark Braden
Gale Page as Sue Warren
George Offerman, Jr. as Red
Weldon Heyburn as Cooper
Cy Kendall as Morgan
Charles Trowbridge as Judge Clinton
Spencer Charters as Old Doctor
Donald Briggs as New Doctor
Frank Jaquet as Commissioner
Helen MacKellar as Mrs. Burke
Al Bridge as Mr. Burke
Sibyl Harris as Mrs. Hawkins
Paul Porcasi as Nick Papadopolos
Frank Otto as Junkie
Ed Gargan as Officer Hogan
James B. Carson as Schwartz
Hally Chester as Boy