Sergei (Danil Kozlovsky) was once a top student in the history department of the university, but now he has become a gangster who resells cultural relics. He leads Qilepu (Vladimir Yaglych), Spirt (Andrey Terentyev) and Qiuha (Dmitry Volkostrelov) to shuttle through ancient tombs of all sizes all day long, trying to find treasures that can make them rich overnight. One day, in an ancient tomb, the four accidentally discovered a safe, which was locked with a soldier's certificate with the names of the four people. The frightened Sergei and his party crossed through the lake next to the cemetery to 1942, when they became soldiers of the Soviet army and were about to set foot on the battlefield. In addition to facing the enemy's flying artillery fire and the ubiquitous threat of death, the biggest problem facing Sergei and his party is how to return to the modern era.