Two teenagers Marco and Lyuda are helping border guards to catch a spy.
Irina Mitsik , Vladimir Kislenko , Ivan Ryzhov , Gennadiy Yukhtin , Viktor Miroshnichenko , Seryozha Krivoshlykov , Tatyana Fateeva , Dmytro Franko , Vitold Janpavlis , Sofya Karamash
Dovzhenko Film Studios