To assassinate Joseph Stalin, the Commander‑in‑Chief of the Soviet Army – that is the task Hitler sets before the Army of the Third Reich. Preparations begin for an operation called “The Chinese Box”. Assassin agents are trained to carry out the mission at a special sabotage school. Here, Soviet prisoners of war are used as living material for training German intelligence agents. Only one of the candidates for a special role in history survives the training. That candidate turns out to be the runaway Russian soldier Pyotr Tavrin. Meanwhile, the Soviet counterintelligence service “Smersh” learns about Hitler’s plan. A special group is being formed from the best intelligence officers, who must ensure that the name “China Casket” does not go down in history. Behind each officer in the group is a human story and their own war experience.