A nuclear war has utterly desolated Earth, leaving mankind in a barbaric state. While the rest of the population tries to survive on a barren planet, a small number of people have fled Earth to Hydro, a secret compound on the Moon. Unsympathetic, the citizens of Hydro refuse to help anyone on Earth. Seventeen-year-old Blake lives on Earth with his dad, Asriel, and little brother, Ronny. Unexpectedly, Blake's dad becomes gravely ill. To save his dad, Blake attempts to escape from Earth to Hydro, where they have the technology that could save Asriel. With so many obstacles along his journey,...