On the night of June 22, 1941, during crossing the border, a courier of Soviet military intelligence dies. The captain-border guard who managed to receive the documents from him mysteriously disappears together with the car loaded with valuables and an archive. A special group has been sent to search, commanded by Captain Volkov. The intelligence officers face an experienced and cunning opponent who is determined to uncover the secret of the cargo first. The novel is the second in the cycle about the adventures of the Soviet intelligence officer Anton Volkov.