First broadcast 15th October 1974.
Hero is assigned a mission off the Norwegian coast.
Donald Burton - Commander Mark Nialls
David Savile - Lt. Commander Beaumont
Norman Eshley - Lieutenant Last
Don Henderson - Master at Arms Heron
Michael Cochrane - Lieutenant Palfrey RM
David Sterne - Sergeant Watkins
Kenneth Scott - Corporal Blundell
Steve Gardner - Able Seaman Grogan
Frederick Treves - The Major
Geoffrey Toone - General Tiering
