A visit to the new super-deluxe Bueno Nacho in Go City turns into an adventure when an fight breaks out between local villain Aviarius and superhero Hego (after a quick-change from his restaurant manager {{secret identity}}). Aviarius uses a staff to steal Hego's {{super strength}} for himself, but instead accidentally transfers it to Kim. Team Possible then assists Hego and his Team Go brothers against Aviarius, recruiting Shego (their sister and a former member of the team before she [[FaceHeelTurn turned evil]]) to help.

!!This episode provides examples of:
* {{Backstory}}[=/=]SuperHeroOrigin: Shego and her brothers were empowered by a [[MagicMeteor rainbow-hued comet]] that struck their tree house.
* BerserkButton: Do ''not'' accuse Shego of going "soft"....
* BlackSheep[=/=]FaceHeelTurn: Shego used to be a superhero working with her brothers until she quit. Hego's explanation is that she became [[EvilIsCool fascinated by evil]]; her own reactions suggest that she simply [[SurroundedByIdiots couldn't put up with them any more]].
* DidYouActuallyBelieve: When Shego has a chance to grab Aviarius' staff and take all the powers for herself, she breaks her alliance with Kim, and mocks her for expecting anything different.
-->'''Kim:''' Shego, I thought we were in this together.\\
'''Shego:''' Oh, come ''on''. [[TheFarmerAndTheViper Don't you know me better by now?]] I mean, ''seriously''.
* DoesNotKnowHisOwnStrength: This happens to Kim a few times after the power transfer.
* EnemyMine: Shego gets roped into helping her brothers and Kim against Aviarius.
* KirkSummation[=/=]ShutUpKirk: After Shego grabs the staff, Hego tries to appeal to her better nature. It doesn't work.
-->'''Hego:''' No, I don't believe it. You may be a cranky smart mouth, prone to excessive violence, but deep down, you are still a member of Team Go... a hero.\\
'''Shego:''' Hego, I quit your stupid team years ago and after I quit, I went to work for a guy who wants to {{take over the world}}.\\
'''Kim:''' It's true.\\
'''Hego:''' But deep down...\\
'''Shego:''' [[PunctuatedForEmphasis I. Am. Evil.]] [[CardCarryingVillain Have I made myself clear?]]
* NoOntologicalInertia: Once Aviarius' staff is broken, everyone's superpowers return to the original owners.
* PowersAsPrograms: Aviarius' staff can steal and transfer superpowers.
* SiblingTeam[=/=]SuperFamilyTeam: Team Go.
* SlaveToPR: Kim threatens to publicize Shego's former life as a superhero if she doesn't help. Shego gives in rather than have her [[VillainCred reputation]] shot.
* ThickerThanWater: Both Kim and Drakken notice that it was surprisingly easy to get the staff away from Shego, suggesting that she didn't ''really'' want to permanently steal her brothers' powers.
* UnwantedRescue: Dr. Drakken, believing that Shego is in trouble, shows up in a [[HumongousMecha giant robot]] to rescue her. This creates a distraction that gives Kim a chance to get the staff away from Shego and destroy it.