
An air base for forest protection is located not far from the border. A team of parachute firefighters takes off to extinguish the fire. Newcomer Valentin Volgin shows indecisiveness during his first flight and is late with his jump. Painfully experiencing his first failure, he avoids the gaze of the pretty instructor Irina Aleeva, who witnessed his unsuccessful jump. And then the team receives the task of providing assistance to the border guards, and Valentin, after a tense chase through the burning forest, overtakes and detains the saboteur.

as Valentin Volgin, parachutist-firefighter

as Irina Aleeva, parachute jumping instructor

as Alexey Ryzhov, firefighter commander

as Boris Nikolaevich Shmelev, saboteur

as Pepelov, radio operator

as Boris Valentinovich Yakovlev, counterintelligence major

as Grishchenko, captain of counterintelligence

as Rumyantsev, counterintelligence major

as young saboteur

as Ivan Nikolaevich Leshchuk, head of the air base

as Grigory Filippovich Fedotov, forester

as Shcherbakov, counterintelligence colonel

as Operative

as Foreign intelligence general