1945. The Second World War hasn't come to an end yet. On the territory of liberated Belarus, a large amount of work on mine clearance of the territories from the remnants of war: unexploded mines and shells left in the ground is carried out. In order to clear the territories, volunteers' squads from the members of OSOAVIAKHIM are formed. Young girls and boys enroll in the deminers courses. They dream of bringing their Motherland back to peaceful life. As soon as they finish only a week-long training course they are sent to a dangerous work, their own demining of the territories where fierce battles have recently been finished. Mine clearance for them is as dangerous as recent war. But the main thing is that their commander, whom they completely trusted, isn't who he claims to be. What will happen to the boys and girls and what decision will each of them make with the terrible truth of what their commander is?