Overview
While in London trying to nab several fugitives who stole a million dollars from a U.S. Treasury vault, American federal agent Dennison (Dennis O'Keefe) assists Scotland Yard Insp. McClaren (Philip Friend) in his search for a missing atomic scientist (Paul Hardtmuth). The detective duo discovers that the key to solving both cases may rest with the scientist's daughter (Margaret Sheridan) and her fascinating diamond.
Cast
- Dennis O'Keefe as Joe Dennison
- Margaret Sheridan as Marline Miller
- Philip Friend as Insp. McClaren
- Alan Wheatley as Thompson Blake
- Francis de Wolff as Yeo
- Eric Berry as Hunziger
- Gudrun Ure as Sgt. Smith
- Seymour Green as Lascelles
- Paul Hardtmuth as Dr. Eric Miller
- Colin Tapley as Sir Stafford Beach