Jupiter Jones was born under a night sky, with signs predicting that she was destined for great things. Now grown, Jupiter dreams of the stars but wakes up to the cold reality of a job cleaning toilets and an endless run of bad breaks. Her personal life also leaves much to be desired, until she meets Caine. Caine is an ex-military hunter, who arrives on Earth to track her down and reveal the girl her true destiny. Thanks to her genetic features, Jupiter inherits an incredible heritage that could alter the balance of the cosmos.