Mari Yosoto has been keeping a dark and dangerous secret from everyone for the past three years. No one would believe her anyway, her ex-fiancé had seen to that. Instead of wallowing in misery, she stays busy, shuttling cargo to the Moon and back, enjoying the easy work and time alone. An old EarthCorps acquaintance asks for her help, and Mari can't say no, even if it means working with the ex's former best friend. Although Trevor Nash took the missing person's job to help his former commanding officer, deep down he needed to see Mari again. After trying and failing to find out what happened to her, Trevor makes the best of an odd situation, hoping he can remind Mari of their budding friendship and finally get some answers. When the mission goes sideways and they find the not-so-missing girl, a centuries-old conspiracy theory comes to light and the only thing more unfathomable is learning Mari's secret. Together with their newly formed ragtag team, Mari and Trevor team up and undertake a mission unlike anything either of them has faced before with life-altering and possibly deadly consequences.