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 … Dennis O'Keefe, Margaret Sheridan, Philip Friend, Alan Wheatley, Francis de Wolff, Eric Berry, Gudrun Ure Added on Amazon Prime 2023-09-04.