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 | Bruce Seton | Richard Shaw | Pauline Winter | Jean Anderson | Hyma Beckley | John Boxer | Cyril Conway | Philip Dale | Andrew Donally | Victor Harrington | Stephen Jack | Barry Johns | Peter Jones | Howard Lang | Frank Ling | Harry Locke | Richard Massingham | Dandy Nichols | Tony Quinn | Bill Rayment | Charles Rolfe | Reg Thomason | Joe Wadham | Michael Ward | John Warren | Ian Wilson