Replaceable You

Replaceable You is the fourth episode of Season 23. In the episode, Roz, Homer's new assistant at the Springfield Nuclear Power Plant, tries to take over his job. The episode aired on 6th November 2011.

Sypnosis
Bart's science fair project, a mechanical baby seal, outshines Lisa's brainy asteroid model and becomes a popular pet among the retirement home patrons. Meanwhile, Homer gets a new and eager assistant Roz, but when Homer quickly loses his job to her and discovers her evil past, he and Flanders team up to reveal her true dark colors.

Plot
Bart is watching a Halloween special (parody of Frankenstein) of The Itchy & Scratchy Show when Lisa comes in with her science project. It proves that an asteroid will strike the Earth on July 15th 9789. Bart doesn't care saying he'll be president of Hell by then. Lisa says good luck with his project that she bets he hasn't started. Bart says his project is a fisteroid hitting the planet Nerd. Lisa says that's pathetic and Bart is annoyed because he actually did make a project like that. He later tries making a project called Cootie Shot. Milhouse asks him if it ready but Bart says no as the science fair is next week. Milhouse wants it because he and his dog really need a shot after they accidentally touched tongues. Bart asks how it's accidentally after the fifth time and Milhouse runs out. Lisa thinks it's similar to the Cootie Patch he did last year. Bart agrees it's rubbish and throws it in the bin. Bart is stuck saying ideas don't grow on trees. He looks out the window and see's Martin Prince hung by his pants on a tree and gets an idea. He goes outside and slingshots Martin's pants unhooking him. Martin then agrees to help Bart if he's picked in basketball. He dreams about it and shouts "I'm in!". They walk past Milhouse who secretly licks his dog's tongue.

At the Power Plant, Homer is reading the Nuclear Safety Procedures. He reads: "In the event of a primary core breach you have 15 seconds to avoid a complete..." and yawns. He uses a key to open a 'top secret' draw and takes out a pillow. He puts it behind his head and slides down an eye mask saying 'Rock Star'. He pulls a blanket up and goes to sleep, snoring. A new woman arrives shouting howdy and wakes Homer up. She addresses herself as Roz Davis. She says she's a girl from Ohio with a daddy with money. Homer takes her to where the workers drink coffee. He tells her to leave a little bit at the bottom so somebody else has to make the next pot and Roz thinks it's genius. Homer says old man Burns is coming, and then talks to him saying young man Burns. Mr Burns leaves and Homer says 'that sucker sucks up flattery like a twinky sucks up gravy'. Roz says nice comments to Homer and starts coughing and falls on the floor.

Meanwhile, at home, Bart is making a drawing of a Homer Humiliator. Martin says he doesn't see the scientific point in his invention.