2차 대전이 한창 기승을 부릴 1942년 7월. 나치 군대가 승승장구하여 스탈린그라드에 접근을 하게 된다. 러시아는 패전에 패전을 거듭하여 계속 후퇴를 하는 도중에 돈강 어귀에 이르게 되고, 식량과 주둔지가 여의치 않고 부상병마저 그들의 짐이 되어간다. 별다른 대응책이 없는 최악의 상황에서 러시아군은 주변 주민들에게 식량과 잠자리를 구걸하는 지경에 이르게 되고, 서로 협력하는 처지가 된 러시아군과 돈강 주민들은 독일군 저지를 위한 마지막 처절한 전투를 벌이게 되는데...
In the surreal aftermath to a plane crash at sea Dr. Iven an eminent scientist is the only survivor to be taken into the confidence of the alien rescuers. He learns that the world with its weapons of mass destruction is not ready for the wonders of the culture of the pacifist visitors. The situation is further complicated by the close relationship that blossoms between the doctor and the female alien, and due to this relationship he is the only survivor allowed to retain his memory of the events, unlike the other survivors including his wife, whose memories are erased.
A Russian engineer Petr Garin possesses a unique beam-shooting weapon that can destroy any target. His goal is to achieve world domination with the help of this weapon. Vasily Shelga is out to stop him and also to prevent others getting possession of this weapon.
The hero of the film, the world record holder in the high jump, after a car accident according to the conclusion of doctors, should forever leave the sport. But against all odds, he is doing everything possible to return to the national team. Chance brings him together with a surgeon, also fanatically devoted to his work - and the hero again wins international competitions.