K.C. may look like an ordinary girl, but she’s on extraordinary missions! When K.C. and Ernie go undercover with a planet-loving group called the Volunteens, K.C. finds herself strongly identifying with their beliefs. Then, Grandma Gayle comes to town and tells K.C. and Ernie about the first black woman spy, Cleo Brown. And worried that she may have sent an innocent man to jail, K.C. and the Coopers go undercover in a traveling circus to investigate. Growing up in a family of spies means sharing every mission!