Dr. Drakken attempts to broadcast a {{mind control}} signal into the music players of college kids on spring break, turning them into an army he can then use to {{take over the world}}. However, the transmitter doesn't quite work as expected, and instead it affects senior citizens at a retirement community via their hearing aids.

As it happens, Kim is there to visit her grandmother, who becomes one of Drakken's brainwashed minions....

----
!!This episode provides examples of:

* CurseCutShort: Played with in a ShoutOut to ''Film/{{Shaft}}'':
--> '''Drakken:''' Your Nana is a bad grandmother--\\
'''Kim:''' Shut your mouth!\\
'''Drakken:''' I'm just talking about Nana.
* HomemadeSweaterFromHell: One of Nana's friends made one, and Nana puts it on Kim to [[BareYourMidriff cover her up properly]].
-->'''Kim:''' Thank you. Wool is so comfy... when it's 98 degrees.
* IKnowMaddenKombat: After the mind control signal is cut off, several of the victims join the fight. One of them takes Shego down by sliding a shuffleboard puck under her foot and tripping her.
* MassHypnosis: Drakken's plan. It works, but not against the targets he had in mind.
* NeverHurtAnInnocent: Drakken sends Nana to attack Kim, taking advantage of the fact that she can't hit her own grandmother.
* NeverMessWithGranny: Nana Possible is a trained martial artist and the first woman to complete the Navy's underwater demolition training. She's still able to put up a good fight at her age, which is a problem for Kim... and a bigger problem for Drakken when the mind control is broken.
* WildTeenParty: When Drakken tries to launch his mind control satellite, some of the spring-break crowd arrive, push him and Shego aside by sheer numbers, and turn the place into a dance party (converting his equipment into a sound system).