A graphic adventure told in 4 chapters from Thriller Picture Library #250, November 1958 - 64 pages. Reprinted in Spy 13 Summer Special #1, June 1966.
British Commandos had freed a noted Norwegian scientist forced to work for the Germans and were trying to fly him to England when a chance meeting with a U-boat ruined the mission. Now Spy 13 is being sent to Norway to see if the man was still alive and to try and get him free.