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.

K.C., Ernie and Marisa are on the run from Zane and eccentric enemy agent Sheena in the heart of the Brazilian jungle.

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 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.

K.C. is tasked with tracking down a dangerous weather-controlling device on the same night as her homecoming dance.

When K.C's somewhat awkward brother brings home a super gorgeous girlfriend, K.C is convinced that she's really a spy. She tries everything to get her to open up, including handcuffing her to an armchair and 'tickle-tasering' her. When nothing works, K.C pretends to talk to someone on her spy bracelet, saying that she'll get the 'important files' in her locker at school. Overhearing K.C's pretend conversation and thinking it was real, Jolie follows K.C to school where they end up having a fight. K.C manages to knock Jolie out with gas from her bracelet. Because Jolie was only Ernie's girlfriend for info about their family, K.C gets her to tell Ernie that she's going to be the first teen in space and must begin her training the next day. Jolie leaves forever and K.C then makes up with her brother and shows him her new earrings that she stole from Jolie.

When Kira forbids K.C. from spending time with her newfound cousin Abby, the teenage spy finds a way around her mom's orders.

K.C. struggles to decide if she should continue as a full time spy or live a normal life at college.

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.

K.C. reluctantly agrees to try out for cheerleading with Marisa so they can spend more time together. Meanwhile, Craig tries to bond with Ernie over sports, but quickly learns his son's gaming skills are better online than on the field.

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.

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.

Unbeknownst to K.C., Marisa is leaking classified information including her latest undercover assignment as a construction worker. Meanwhile, Judy’s disagreement with Diane over the tooth fairy jeopardizes the sophisticated robot’s disguise as an everyday 10-year-old.

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.

Marisa has been named a finalist in a photo contest and her winning photo could be in magazines and billboards everywhere, the only problem is her entry photo is of K.C.

K.C. and Ernie team up with their retired-spy grandparents - Grandma and Pops - to rescue Craig and Kira from a dangerous mission.

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.

The Coopers track down agents who are distributing weapons to enemy agencies, only to discover they are parents of K.C.'s classmate Amy.

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.

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.

To rescue an agent's son at an all-boys cadet academy, K.C. goes undercover as a male cadet with Ernie.

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 Mrs. Goldfeder's house is robbed, K.C. recruits her dad to organize and lead a neighborhood watch group, much to his chagrin. Meanwhile, Judy enlists Pentatonix to help her deliver a special message to Petey.

Ernie hosts a group of young international agents while KC is away on a mission.

K.C. decides to save Ernie since it was her fault the barbecue failed. They learn the Bishops have planted listening devices and someone called the "The Mask" wants the weapons sold.

K.C. realizes she misses Darien and goes to tell him, but he reveals he has a new girlfriend. K.C. lies and says she has a boyfriend and the two agree to go on a double date.

K.C. is tired of being just friends with Darien.

The team strategizes on ways to find Bernice.

Kira tricks K.C. into participating in the mother daughter Cotillion Ball by telling her it’s an undercover mission. But K.C. puts a damper on her mom’s plans when she enlists Marisa to help her go from her usual tomboy drab to Debutant glam.

Ernie and Judy must travel to NYC for the Central Park Spooktacular to intercept an evil wolf serum, but their mission is interrupted when they run into “Jessie’s” Emma and Zuri at the party. Meanwhile, Marisa and K.C. throw their own Halloween bash back at the house and K.C. decides to dress up as a spy to impress the new boy in school, River.

When Judy is due for an upgrade, the Coopers reminisce about their great times before they have to delete her memories and return her to the Organization.

When Agent Beverly from The Organization hassles K.C. for her last mission report, the same classified information that Marisa has inadvertently used as her class paper, the best friends must race against the clock to get the assignment back.

The Cooper family tries to take a much-needed vacation from spying, but their plans are interrupted when a wealthy socialite vanishes from their resort and K.C. is determined to find out what happened.

When K.C. enlists her family to help Brett escape from The Other Side, the Coopers find themselves in danger with enemy agents and The Organization.

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.

Ernie and Marisa team up to help K.C. stop Brady and The Alternate from launching The Storm Maker.

K.C. tries to convince her parents that her brother, Ernie, who is a genius with computers but pretty clumsy at everything else, is ready to become a spy. However, Craig and Kira have a different plan and introduce them to their new little sister, Judy - a sophisticated humanoid robot disguised as a precocious 10-year-old.

K.C. and Marisa take Amy on a trip to New York so she won't be at home to witness her "parents" being arrested by the Organization.

K.C. struggles to make amends with Marisa after their fight, while Marisa wants a recommendation for The Organization from K.C.

K.C. sets a trap to reveal Brady's secret identity.

K.C. Cooper, a high school math whiz and martial arts expert, learns her parents are spies when they recruit her to join them in the secret government agency. The newly appointed teen spy takes on her first undercover assignment, which coincides with her school dance. The mission: apprehend an enemy teen spy and recover the code for a virus designed to render every mobile device useless.

K.C. goes undercover as a college student at The University of Maryland to befriend and protect the President of The Organization's daughter, Eliza. Meanwhile, Judy tries to talk Ernie into letting her join his Adventure Scout troupe.

When The Organization assigns Junior Spy of the Year, Brett Willis, to go undercover as K.C.'s boyfriend for a mission, K.C. winds up having real feelings for him. Meanwhile, Craig and Kira receive alarming news that their old arch rival Zane is back and determined to destroy them.

Byron waits for K.C. to respond and she says she's not K.C.. but her cousin, Cassandra. Byron suggests they all go to dinner, so K.C. breaks Bernice out of jail to play her cousin.

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.

When a former foe needs the Coopers' help, the family has to decide if they can face the consequences of aiding the enemy.