Подводная лодка Т-9

The Great Patriotic War. The Soviet submarine T-9, having passed through the minefields of the North Sea, penetrates into the enemy port. Sailors sink enemy transport ships, but soon find out that they were late - enemy troops and weapons have already been unloaded and sent to the front. Captain Kostrov finds himself in a situation where the combat mission is almost impossible, but he must complete it - for him it is a matter of honor or dishonor.