In the fall of 2014, in the vicinity of the Exclusion Zone, the largest emission in history occurred, as a result of which the Zone began to absorb larger and larger areas of the Earth, threatening the existence of life on the planet. In 2048, a time machine is invented, and its creator, Professor Demyanenko, comes up with a plan to save humanity, which consists of sending a military specialist into the past who is able to understand the causes of emissions and prevent them.