A space mission goes out with 4 people and comes back with 4 people. However, one of them is not the same as before they left. An invasion of a foreign species begins to ravage the planet and Harlowe Thatch, the cause of the invasion, has to do all she can to try to fix what she has caused. Soon, however, Harlowe discovers that the invaders are unlike anything humanity has ever faced. In a bid to save her own life, Harlowe finds herself deeply embroiled in the fallout from her fateful space mission. With life on the planet hanging in the balance, there are no easy choices, but time is quickly running out.