You can run from Dynamo to Sokol in fifteen minutes, but you need to run very quickly, otherwise you won’t have time. Curfew is a law for everyone without exception. And for the fragile girl Vicky, who decided to visit her lover for the night. In contrast, the military patrol of the alien Serpiens invaders has nowhere to rush. They are armed and equipped with the latest technology of supercivilization. Slowly but inevitably they are approaching their victim... Philip Grinevsky sees all this. He sees and cannot move. Not because he is a coward, but because it is not his business to save his beloved when he needs to save the whole Earth from aliens. And for the sake of this great goal he is ready to do anything. Even become a traitor to the human race.