The Soviet intelligence officer Alexei Fedotov, under the name of Heinrich Eckert, goes to Vinnitsa occupied by the Germans. His goal is to get General Kuhn's secret correspondence with Hitler’s headquarters. The radio operator, sent to Alexei for communication, was caught by the Germans and shot. Fedotov is forced to seek communication through the underground, but by chance he learns that one of the underground is a provocateur. A brilliant professional not only fulfills the task of collecting the most valuable information, but, returning to his homeland, takes with him the general himself. In 1948, the film received the Stalin Prize.