Kessler decides to use a downed Wellington, in which all crew members were killed, to attempt to infiltrate the Lifeline Pipeline which repatriates British airmen via Spain. He substitutes a young Gestapo officer, Ernst Stoller, who was brought up in England. Stoller poses as an injured airman and eventually gets picked up by members of the Resistance. Stoller becomes emotionally involved with Monique who is going through an exceptionally difficult time in her relationship with Albert. She decides to confide some aspects of her life with Stoller. Later, Monique learns that an extra crewman, unaccounted for at the crash scene, has been found dead in woodland and that information given by Stoller does not tally with that recently received from London. The conclusion is that Stoller is an infiltrator and will need to be eliminated. Setting aside her emotional attachment with the German, Monique agrees to assist Albert. Monique brings Stoller to a deserted location where she hands him over to Albert who shoots him.
—Chris