Secret Army: Revenge. The Commies have their sights set on Albert, and Kessler is determined to prove that Major Reinhardt was part of the failed conspiracy to assassinate Hitler. Season 3 is gripping-as-f**k so far. Kessler is such a fantastic character, being seemingly genuinely gentlemanly and loving with his Belgium "lady friend", but this humanising only makes his fanatical Nazi zeal all the scarier. Cracking stuff.