They were just guys, soldiers of difficult service, who came to pay their debt to the Motherland for a year. They were guarding one of the facilities of the huge military machine of the Russian Army in the depths of the Siberian taiga. Some were already expecting demobilization in the near future, while others had just recently come from civilian life. But none of them suspected or even imagined that fate had left them only a few hours to enjoy life. And no one knew that a terrible enemy who would leave them no choice was always nearby, always in sight, but in the depths of his genetic code the clock was already ticking...