A young philologist works in his teacher's archive, and he manages to decipher Pushkin's priceless autograph. The discoverer, inspired by success, forgets about everything in the world. And the incredible happens: under mysterious circumstances, the archive disappears. Now the scientist needs to defend his good name - and not only among colleagues.

From childhood, Sanya Grigoryev was able to achieve success in any business. He grew up a courageous and brave man. The dream of finding the remnants of Captain Tatarinov’s expedition led him to the ranks of polar explorers. The life of Captain Grigoryev is full of heroic events: he flew over the Arctic, fought against the Nazis. He was in danger, had to endure temporary defeats, but the hero’s persistent and purposeful character helps him to keep his vow made to himself in childhood: “Fight and seek, find and not give up.”