Government agent Dick Barton battles a ring of Nazi spies who are planning to poison the entire London water supply.
as Dick Barton
as Snowey White
as Jock
as Jean
as Dr. Casper
as Roscoe
as Regan
as Betsy Horrock
as Schüler
as Snub
as Gilpin
as Stark
as Adele Reed
as Tony Burton
as Sir George Cavendish
as Henchman
as Henchman in Fist Fight
as Henchman
