In the aftermath of a NASA rocket launch gone terribly wrong, Captain Calli Chase comes face-to-face with her missing twin sister--as well as the startling truth of who they really are. Now, a top secret program put in motion years ago has spun out of control, and only Calli can redirect its course. Aided by cutting-edge technologies, the NASA investigator and scientist turned Space Force pilot sets out on a frantic search for the missing link between the sabotaged rocket launch and her predetermined destiny... a search that someone else seems very interested in stopping. From NASA to the Chase family farm, to the White House to distant orbits of space, Calli plays a high-stakes game of hide-and-seek with a cunning and ruthless adversary. One wrong move will unleash cataclysmic consequences reaching far beyond the boundaries of Earth.