K.C. Cooper, a high school mathematics whiz and karate black-belt, learns that her parents are spies once they amuse her to join them at the secret government agency, the corporation. While she has got the newest spy gadgets in her own disposal, K.C. has too much to learn about being a secret agent, for example keeping her fresh gig a secret out of her best friend Marisa. Together, K.C. and her parents, Craig and Kira, and her younger sisters, Ernie and Judy (a humanoid robot), attempt to balance regular living life whilst on undercover assignments, close and far, to conserve the world.