K.C. Cooper (Zendaya) is an overachieving high school genius and a martial arts expert who's shocked to learn that her parents, Craig (Kadeem Hardison) and Kira (Tammy Townsend), are spies for a government agency called the Organization. When they recruit her to join them, K.C. discovers that conquering calculus doesn't necessarily translate to excellence in the spying field, and she has her work cut out for her if she wants to excel at it. Her most difficult challenge will be keeping the secret from her best friend, Marisa (Veronica Dunne), who's relentless in her efforts to rescue K.C.'s social life. Along with her parents and her younger siblings, Ernie (Kamil McFadden) and a humanoid robot named Judy (Trinitee Stokes), K.C. endeavors to complete her missions, maintain her grades, and maybe even enjoy the occasional school dance.