Vitaly Shebalidin finishes the Academy of the Space Fleet among the best. Ahead of him, a future awaits—after all, he comes from the “herd”—a future he could only dream of: first “starlets” on his shoulder boards, graduation ball, a meeting with his beloved girl, and then service in one of the guard regiments and flights as part of the youth crew of the newest spacecraft. But all his brilliant plans collapse in a single moment when it turns out that he will not be a part of the shield of Earth and the Colonies, but only a contemptible “screw” — a quartermaster. A “screw” allowed into the secrets on which the very existence of the Space Fleet depends.