Six months no longer part of the Organization, the Coopers have to live their lives without being spies. That changes their lives forever. But when K.C finds out that Ursula has been torturing them, the Coopers have to strike back to get Judy back and to eliminate Ursula.
When a college student shows up claiming to be a relative, Kira is forced to tell a family secret she's been holding for years. Meanwhile, Marisa and Ernie give K.C. tips on how to handle her first date with Darrien.
When Kira forbids K.C. from spending time with her newfound cousin Abby, the teenage spy finds a way around her mom's orders.
Kira reluctantly agrees to help K.C. reunite Abby with her mother Erica, who has been hiding from The Other Side and The Organization for several years.
When Darien is mysteriously injured in an accident, K.C. tries to figure out who is behind it. Meanwhile, Craig becomes head of security for a vice-presidential candidate.
When K.C. learns Erica and Abby are working with the head of The Other Side to carry out an evil mission at the Presidential election party, the Coopers must act fast to stop the enemy agents.
Ernie tries to impress The Organization with his science skills and develops a truth serum. Things get out of hand when K.C. accidentally drinks it and has to complete an interview to help Marisa get a job.
To boost Ernie's self-confidence, K.C. and Craig tell him that he's in charge of their next mission, but secretly K.C. is really running point.
When K.C. goes undercover in a retirement home as wise-cracking senior citizen Bernie, her disguise unexpectedly wins the affection of feisty senior, Irma.
When Craig and Kira discover they were never legally wed, K.C. decides to throw them a do-over wedding.
When K.C. has to find an undercover spy to pass a test for a promotion at The Organization, everyone at the Cooper's neighborhood potluck becomes a suspect. Meanwhile, Petey is on his own mission to try and scare Judy.
When K.C. has to capture wanted computer hacker Noah Stone, she finds herself in competition with teen bounty hunter Pinky Carter, who is also determined to take the hacker into custody.
When K.C. has to catch a ring of criminals smuggling fireworks, she reluctantly has to take on a new partner, canine spy Dexter.
K.C. and her family of spies assume a myriad of disguises to catch an art thief, including going undercover as performers in a traveling circus.
Grandma Gayle takes K.C. and Ernie back to the 70s to relive how Cleo Brown became the first Black female spy for The Organization.
Kira's big moment at the Spy of the Year Awards is interrupted when the son of Tony "The Big Toe" Tolentino crashes the secret ceremony to avenge his father.
K.C. and Ernie go undercover with a planet-loving group called the Volunteens, while Craig is getting in shape for his new assignment to protect an ambassador.
K.C. is given a mission by the Volunteens organization that pits her against Craig and his assignment to protect the ambassador.
When K.C. goes into a virtual reality game to rescue Ernie, it becomes the craziest Halloween ever for the teen spies as they try to tackle the alternate universe and enemy agents Darci and Damon, the masterminds behind the evil game.
When Scholastic Achievement Quarterly tries to interview K.C. for being the smartest student in her school, she disguises herself as her mom so she can be featured and hide her identity as a spy.
When K.C.'s latest mission is compromised, she is tasked to find the mole in The Organization.
It's Christmas time and K.C. tells everyone she has to go pick up a last minute gift, but instead goes to The Organization's therapist, Dr. Levinstein.
The Coopers go undercover in a biker club to find Richard, the head of The Other Side. Meanwhile, everyone thinks K.C. is losing it when she claims she saw her evil cousin Abby, the enemy agent she eliminated.
K.C. and her family find themselves in an epic spy showdown vs. The Other Side when her evil aunt Erica and her family return.
