Alexey Titarenko is very talented pilot and brave leader of "Singing group". He also must look after some new cadets and fight together with them against German Luftwaffe planes. Close to Alexey always are his friends, they are all from different parts of the country, but they all became real brothers.
October 20, 1944, Belgrade was liberated by Red Army and Tito's partisans. But the capital of Yugoslavia is still fraught with danger - retreating aggressor mined the city . A special partisan squad goes into underground maze of tunnels to find and disarm explosives which are still guarded by SS special forces.
About the struggle of steelworkers and residents of the city of Mariupol against the German fascist invaders during World War II.
