I'm fond of espionage novels and films, especially World War II era. The concept here is brilliant: a group of modern women and men volunteer to undertake the same training program as British Special Operations Executive agents who were being prepared for intelligence-gathering, sabotage, support of local Resistance fighters, and covert communications in territories occupied by the Nazi enemy. This is reality television of a very high order. The participants, both volunteers and their instructors, are utterly convincing. The volunteers are exceptionally brave.