When his volatile father is picked to become an astronaut for NASA's mission to Mars, seventeen-year-old Cal, an aspiring journalist, reluctantly moves from Brooklyn to Houston, Texas, and looks for a story to report, finding an ally (and crush) in Leon, the son of another astronaut.

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...