The Nebula Chronicle: Undercurrents

An encounter with extraterrestrial civilizations sparks a fight to the death between humanity and two alien species. Faced with crisis, the whole world joins forces. At the pivotal moment that will determine whether Earth's civilization survives, humanity displays extraordinary courage and wisdom. But against such powerful foes and the merciless laws of the universe, can Earth's civilization weather the storm, break through its barriers, and step into the future...?