Blockade. Undercover NKVD — The battle for Leningrad was not only at the strip edge. Was once invisible to many front. German and Russian special services almost three years led their lurking behind the war Leningrad. On the heroes of that war were silent historians, their names kept KGB archives. But there comes a time opening its secrets. A new documentary film 5th channel — unknown materials about secret operations during the siege of Leningrad, the first impartial account of the contribution of intelligence to the victory of the town. Having stopped the troops at the walls of Leningrad, the German command had focused on special services.
2nd Global war