The main character, nineteen-year-old Anastasiy Chizhov, was appointed commander of the Zver patrol ship. Under his leadership, the old fishing vessel becomes a strong fighting unit.
Aleksandr Kulyamin , Margarita Sergeyecheva , Igor Yasulovich , Andrei Gusev , Yuri Duvanov , Vasyl Petrenko , Klara Luchko , Vladimir Druzhnikov , Pyotr Lyubeshkin , Svetlana Konovalova