How far would you go to save your sister?

Roxane Villeneuve was doing just fine living on Mars, until a message and a pair of suited strangers converge on her life to tell her that her sister Vivian has gone missing. Now Roxane, along with her plucky roommate Adam, will brave dangerous prototypes, mysterious visions, an unknown alien landscape, and physics so bizarre it's basically magic. Does this cocktail waitress and arts major have what it takes to find Vivian and bring her back?