High-school student K.C. Cooper is a math whiz with a black belt in karate. A normal teen otherwise, her life changes when her parents, Craig and Kira, recruit her to be a spy in a secret government agency known as The Organization. Along with her parents and younger siblings Ernie and Judy — the latter is a humanoid robot — K.C. must balance a civilian existence with undercover missions designed to save the world. As K.C. goes about spying, she must keep the newfound career a secret from best friend Marisa.