The film tells the story of the life of an Old Believer community at the beginning of the last century. The drama of an unusual life, a story of love and human passions.

How to save the village? How to keep people in it? How to manage the land adjacent to large construction sites? The last inhabitants of the village are trying to solve these problems.

Junior Lieutenant Maleshkin, an unshooted graduate of the school, commands the crew of the self-propelled gun SU-100. All the subordinates of Maleshkin are older than him and much more experienced. The authority of the young commander is tested at every step, he quarrels, then reconciles with his crew.