Timewatch (1982) : 5x5

In January 1943 lone British agent Henri Dericourt was dropped over occupied France. His mission was to organise the reception and departure of RAF flights crucial to the secret work of SOE - the Special Operations Executive. Dericourt quickly earned a stellar reputation, but within six months of his arrival, the SOE's largest network in France was wiped out and more than 400 French resistance workers arrested. Post-war investigations established that Dericourt had fed secrets to the Germans ever since he had begun his work in France. But Dericourt was no simple traitor. What then was his role in the disaster and for whom was he really working?