Mom, I have toppled corrupt foreign goverments and still gotten my math homework in on time. I think I can handle a switch-out of a laptop. Piece of cake.
K.C. to Kira

Domino 3: Buggin' Out is the twenty-second episode in Season 3 of K.C. Undercover and the seventy-third overall. It first aired on January 31, 2018 to 1.00 million viewers.[1]


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.[2]


Main Cast

Recurring Cast


To view the Domino 3: Buggin' Out gallery, click here.


  • This is the third part of the "Domino Effect" arc.
  • Ernie has a cat allergy.
  • The Bishops apparently have no direct ties to the Other Side or The Alternate, as both enemy agencies are aware the Coopers are operatives of the Organization.
  • Brady showed more of a good side as he helped Agent Johnson and the Coopers with the mission. He also helped Marisa and apologized to her for what had happened in the past.
  • Amy was revealed to be an enemy agent at the end of the episode alongside her parents.


Ms. Shaffer Maybe you don't remember me because you never show up for our meetings. I've emailed you three times.

Marisa Oh, well, everything from school just goes right in my spam folder.


Season 1
PilotMy Sister from Another Mother... BoardGive Me A “K”! Give Me A “C”!Off the GridPhoto BombedHow K.C. Got Her Swag BackDaddy's Little PrincessAssignment: Get That Assignment!Spy-anoia Will Destroy YaDouble Crossed Part 1Double Crossed Part 2Double Crossed Part 3Stakeout TakeoutThe Neighborhood WatchdogsFirst FriendOperation: Other Side Part 1Operation: Other Side Part 2K.C. and the Vanishing LadyDebutante BallerK.C.'s the ManRunaway RobotAll Howls EveThe Get Along VaultEnemy of the State'Twas the Fight Before ChristmasK.C. and Brett: The Final Chapter - Part 1K.C. and Brett: The Final Chapter - Part 2
Season 2
Coopers Reactivated!Do You Want to Know a SecretRebel with a CuzThe Mother of All MissionsAccidents Will HappenBrainwashedThe Truth HurtsDown in the DumpsDance Like No One's WatchingThe Love JinxK.C. Levels UpCatch Him If You CanSup, Dawg?Tightrope of DoomThe Legend of Bad, Bad Cleo BrownSpy of the Year AwardsIn Too Deep, Part 1In Too Deep, Part 2Virtual InsanityUndercover MotherTrust No OneHolly Holly Not So JollyCollision CourseFamily Feud
Season 3
Coopers on the RunWelcome to the JungleOut of the Water and Into the FireWeb of LiesTeen DramaK.C. Under ConstructionThe Storm MakerKeep on Truckin'Unmasking the EnemyThe Truth Will Set You FreeStormy WeatherDeleted!Second ChancesRevenge of the Van PeopleThe Gammy FilesTake Me OutTwin It to Win ItCassandra UndercoverK.C. Times ThreeThe Domino EffectDomino 2: BarbecuedDomino 3: Buggin' OutDomino 4: The MaskK.C. Undercover: The Final Chapter