On the night of June 22, 1941, a fire breaks out on a German passenger ship. The Soviet tanker "Caspian" comes to its aid - and navigator Nikolai Borshch rescues a German girl, being severely injured in the process. Later, however, the Germans capture the "Caspian" and force it to go to Hamburg...

Mafia kidnaps an investigator's little son after he discovers massive thefts on a local shoe factory. With the help of his three old friends, two cops and a newspaper reporter he struggles to rescue his son and close the case at the same time.