Government agent Dick Barton battles a ring of Nazi spies who are planning to poison the entire London water supply.
Dick Barton
Snowey White
Jock
Jean
Dr. Casper
Roscoe
Regan
Betsy Horrock
Schüler
Snub
Gilpin
Stark
Adele Reed
Tony Burton
Sir George Cavendish
Henchman
Henchman in Fist Fight
Assistant Director
Music Director
Music
Casting
Director
Story
Writer
Director of Photography
Producer
Editor
Art Direction
