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. 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. reluctantly agrees to try out for cheerleaders 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.

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

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.

When K.C. loses her confidence after making a big mistake on a mission, Marisa goes on her own mission to get her best friend back on her game.

The Coopers are assigned to protect Prince Promomomo and must hide the teenage leader in their home for a few days. But when K.C. and the Prince become smitten with each other, Craig freaks out.

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.

When K.C.'s somewhat awkward brother Ernie brings home his new girlfriend Jolie, a smart and super gorgeous exchange student, K.C. is convinced she is really a spy.

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.

Zane has captured K.C., but her family has no idea because the evil agent has created a K.C. look alike to take her place and defeat the Cooper family.

The K.C. doppelgänger gains access to The Organization, now Kira and Craig must race against the clock to save their daughter and the agency.

When K.C. decides to take a must needed vacation during a stakeout to catch a notorious robber, Ernie finally gets a chance to bake the biscuits and prove to his dad and K.C., that he is more than just the computer guy.

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.

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 K.C. and her mom go undercover in a correctional facility, they have to face off against each other to protect K.C.'s cover as a tough criminal and Kira's disguise as a correctional officer.

K.C. goes even deeper undercover into The Other Side's training ground and is close to getting the intel she needs, when she discovers Brett is her new training officer.

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.

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 Debutante glam.

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

K.C. Cooper enlists the help of former spy and computer engineering expert Simone Deveraux when her family's sophisticated robot, Judy, runs away and is captured by enemy agents.

When it's discovered The Other Side has Judy, K.C. and a special guest travel to Alaska to save her! Can they save her? Or has The Other Side already made use of her...?

Ernie and Judy travel to NYC for the Central Park Spooktacular to intercept an evil wolf serum, but their mission is interrupted when they run into Emma and Zuri at the party. Marisa and K.C. throw their own Halloween party at the house.

This special episode follows K.C. and Ernie who, when trapped inside a bank vault, must figure out how to put their sibling rivalry aside and work together to escape.

When The Organization arrests Kira for being an enemy of the state, defender Maggie Summers arrives to help K.C. prove her mom was framed. But, is Maggie helping or hurting Kira's case?

When K.C. gives her dad the perfect Christmas gift - a surprise visit from his father - she is the one who is surprised when she learns Craig and her Poppa Earl don't really get along, and he has no idea they are all spies.

Brett is back and his assignment is to eliminate K.C.. But when he can't bring himself to complete his mission, K.C. decides to help protect him from The Other Side.

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.