Aviation school. Future officers of the jet squadron are engaged in practical studies. When performing a training assignment, cadet Korenyuk violates flight discipline. The instructor pilot, considering Korenyuk to be a talented cadet, forgives him for this offense. When, during another training flight, Korenyuk dives onto a fishing vessel, cadet Bukreev, who is in the cockpit, takes the blame. Bukreyev is arrested for ten days...