Navigator Gleb Tanaev, who has repeatedly encountered the power of the ancient civilization of the Antes, again sets out on a most dangerous journey. In the cursed city of the Lower World, where Tanaev got through a fiery portal, he, together with new friends and his beloved girl, makes his way through hordes of enemies to the mysterious Temple, not yet knowing what the victory over the Black Arch, the ancient god of death, will turn out for him and the whole Earth.. .