Starship Human Dawn is evacuating the last residents from a dying Earth in search of a new world. 5000 humans are in suspended animation while the vessel travels through post-light speed infinity drive under control of computers. Commander Sophie Copland wakes up in deep space because of an emergency drop to sub-light speed.
Human, Kyla Adair has caused this. She is escaping from an alien world of humanoid beings called benefactors. After no senior officers are found to be alive, two other junior crew, Penny and Jack are awoken. The three find the starship is occupied by of human terrorists who have killed the senior officers and are torturing two benefactors, Daz and Foxin. They rescue them and manage to blast three self-life-supporting drones containing the suspended animation humans away before the starship is destroyed. They in escape in a 'lifeboat' and Kyla's damaged spaceship.
Only the five can keep humans and benefactors from becoming extinct in a hostile cosmos.