Men from Scotland Yard and military intelligence build a dossier on a sabotage ring.
Length 93 minutes
Liam Redmond | André Morell | Kenneth Griffith | Anthony Bushell | Mary Morris | Joan Hickson | Anthony Nicholls | Geoffrey Keen | John Bailey | Patric Doonan | Dora Bryan | Stuart Lindsell | John Harvey | Charles Lloyd Pack | Laurence Naismith | Jack McNaughton | Julian Amyes | Alfie Bass | Hélène Burls | Basil Cunard | Harry Fowler | Everley Gregg | George Hilsdon | Glyn Houston | Douglas Ives | Moultrie Kelsall | Sam Kydd | Victor Maddern | Julien Mitchell | Julian Somers | Marianne Stone | John Warwick | Lockwood West