On one occasion, during routine excavation, Speecht discovered a cave that had been buried for many years, and found the bodies of a Soviet commander, a female nurse and four soldiers. But a safe aroused the strong curiosity of four young people. They bought white wine in the village, drank wine to congratulate them, and found almost rotten soldiers' documents in the safe. To their shock, these documents not only filled in their names, but also attached their own photos. In order to get rid of the terrible illusion and wake themselves up, they jumped into the nearby lake, but when they dived out of the lake, they found themselves in the area near the front line in 1942. At this time, the soldier's documents they found came in handy. With these documents, they were accepted as soldiers by the nearby Soviet army. Now, the first task of these four "illegal treasure thieves" is to return to the present era. However, a lot of endless events hindered its realization, one of which was the unexpected romantic love between Pahlman and nurse Nina. What makes them fidgety is that they extremely doubt that they dug up their remains in the sunny day of 2 1 century!