The episode begins with Principal Brown breaking the news about Darwin passing the aptitude test with perfect scores. Since this had never happened before, Brown informs The Wattersons that Darwin has been sent to a government institute for geniuses to have his brain experimented on. The entire family is clearly very upset about this, especially Anais, who claims that the whole operation seems to be a form of quarantine. Brown is intrigued por her insight and wonders if there's another genius in the room, which scares Anais into actuación like a fool. Nicole is outraged at this and preguntas Brown...

The episode begins with Gumball and Darwin playing a game on the playground. Gumball gives Darwin a couple of tasks to complete, but he fails all of them. Darwin does not want to be his brother's slave for a day, so in a fit of desperation he attempts to jump through his own leg. Soon after, Bobert walks up to them and asks them if he can play the betting game. Gumball obliges, but asks Bobert a trick question, causing him to lose the bet.

Because of this, Bobert switches to command mode and therefore becomes Gumball's slave for a day. Instead of using him to solve global crisises, Gumball uses...

Richard neglects to hire a proper babysitter for Anais, so Nicole reluctantly allows Gumball and Darwin to babysit her instead while they go have a conference with Miss Simian at Elmore Junior High. Nicole hopes that the boys will be responsible, failing to be convinced properly because the two have no idea what "responsible" means. Still, they do promise to look after Anais.
After Nicole and Richard leave, Anais is about to go upstairs. Gumball and Darwin, however, forbid her por jumping on parte superior, arriba of her because of their mislead belief about the dangers of stairs. So instead, Anais decides to watch...

One día at school, Anais, Gumball and Darwin were in the boys' toilet. " Gumball.. " " Yes, baby sis?" asked Gumball. " I'm female. Why am I in the male's toilet?" asked Anais, " Hahahahaha!" Gumball laughs.
" Darwin!" ordered Gumball. " We are here to talk about what Tina's done to us! She kicked my butt!" told Darwin. " She hates me and one time, she wanted to ate me!" shouts Gumball.
" Anais.. what's your problem with her? Oh! Daisy! Let's take revenge on her!" suggests Gumball. " I told her to take it! She needs it más than I do, Gumball!" told Anais.
Anais walked out of the toilet and...