Astrid would rather blast off into space than suffer through her mental health struggles. Literally. Alongside astrophysicist and engineer, Doctor Barbara Loonsfoot, Astrid schemes and pilfers the components for a ship capable of reaching a lightyears-away world.

Astrid's mother, Cassie, and best friend, Willa, have spread themselves thin. Astrid attempted to take her own life not long ago, and they are doing everything they can to keep her from sinking to those depths again. Cassie has even turned to an eccentric new psychiatrist-a one Doctor Barbara Loonsfoot-to aid in Astrid's ongoing recovery.

But Loonsfoot and Astrid's ship needs one more thing: uranium. And there happens to be a nuclear power plant nearby.