“We are sending the ship to the third planet. The likelihood of reaching it alive is negligible for us - the protective layer of the ship is destroyed... However, brothers in Reason wandering in Space in search of shelter will be informed about the optimal safe course laid by our navigators. Our time is running out, goodbye.” For thousands of years, another civilization has lived on Earth side by side with people, and no one - neither people nor aliens - knows about each other’s existence. Until the young scientist Sergei Muromtsev, by the will of a tragic accident, opens Pandora's box.