After serving a term in prison for safe-cracking, Fred Martin finds work as a Taxicab driver. He is approached by a gang that recruits ex-cons, but, wishing to go straight, he informs the police and they send him undercover to join the gang and expose its leader. But the gang discovers Martin's identity and tries to kill him by locking him in a deep freezer. He is saved by his cabby friends who ride to the rescue and corner the crooks.
Jimmy Hanley as Fred Martin
Lana Morris as Myra
Sonia Holm as Jean
Jack Allen as Parker
Sam Kydd as Spencer
Pat McGrath as Henry
Michael Mellinger as Tim
Charles Morgan as Maclaren
Bruce Beeby as Inspector Rawlings
Rupert Evans as Williams
Elizabeth Seal as Gwen
Jack Stewart as Gregson
Frank Thornton as Inspector Finch
Trevor Reid as Commissioner
Edwin Richfield as Nat
Jane Harwood as Cashier
Madge Brindley as Mrs Evans
Joan Carol as Scientific Officer
Leonard Sharp as Evans, the first Watchman (uncredited)
Ian Wilson as Second Watchman (uncredited)
Vernon Greeves as Radio Operator (uncredited)
The Radio Times gave the film two out of five stars.
TV Guide also gave two out of five stars, and wrote, "a good cast is all that saves this weakly scripted effort."
Sky Movies also rated the film two out of five stars, and noted, "Vernon Sewell was both a competent and prolific director in the genre and brings a professional crispness that many of his contemporaries lacked."