The film is set in a small village near the Tikhvin Tikhvin Monastery. The main characters - a rustic house painter grandfather, Peter, his granddaughter Masha and the neighbor boy Grisha. Duration - 17 century. In the past, the Tikhvin Monastery unsuccessfully besieged by the Swedish army. Voivod Prozorovsky Simeon, who led then Tikhvin militia now took monastic vows. The icon painter Peter is working on a list of the Tikhvin Mother of God for the image of the village church. Unforeseen circumstances prevented iconographer in time to finish the job. Children try to help him and face dangerous challenges. The miraculous image of Our Lady of Tikhvin their intercession will save them.