Evacuated from their home, two teenage sisters unite with fellow survivors and escape London by river to embark on an odyssey across the badlands of Britain.

When Earths water is rendered undrinkable by an interstellar gas cloud, a mission is sent to begin extracting liquid water from the moon Enceladus. An ex astronaut must conquer his aqua phobia and let go the darkness within him. The fate of humanity rests on his shoulders.

The lives of a group of teenagers are turned upside down when their town is taken over by sinister forces.