Browse all 2 episodes in this season, including available images, air dates, runtimes, ratings and episode summaries from TMDB.

Episode 1
In the first of two programmes, Peter Taylor investigates how today's spies are recruited and probes the secrets of spycraft, from the sleeper cell to the brush pass and the cut out to the cyber spy.

Episode 2
In the second of two programmes, Peter Taylor looks at the real world of modern spies and investigates how far today's spies can go to prevent terrorist attacks.