In Novosibirsk of the year 2033, every step beyond the cordons of one’s home metro station can turn into a dangerous adventure or even death. Any resident must become a hero in order to fight—or die. Such is the choice facing young Sergei Kasarin when a terrible phantom from the past breaks free, threatening to destroy not only the world familiar to him, but all life on the planet. It seems the enemy is invulnerable and there is no hope. And yet humanity still has one single chance to see the sun once again…