Whilst attempting to put together Scandinavian
flat-packed furniture, Homer manages to get stuck in a cabinet he has assembled. To help him escape,
Barney recommends to him a new app called "Chore Monkey" that makes its user's life easier by assigning contractors to perform menial tasks for the user. Homer begins to use the app for all his unwanted tasks, and solicits a Chore Monkey called Blake, who is an
ex-hostage negotiator, to argue with Marge in his place. Homer then uses Chore Monkey Gold—the app's premium subscription tier—to hire a substitute father figure for
Bart. However he soon becomes jealous of the easy rapport between this Chore Monkey—
Matt Leinart—and his son. Homer briefly hires a Chore Monkey named Tyler to act as a substitute son, but the two squabble, leading to Tyler
blackballing the Simpsons' house. After attempting to video a premeditated "accident" for submission to
America's Funniest Home Videos,
Milhouse and his father,
Kirk Van Houten, fall out. Homer attempts to spend time with
Grampa, who has been informed that he's impregnated a fellow (unnamed) resident of his retirement home, and is nervous since he believes that Simpson men do not make good fathers. Midway through a game of
Monopoly, Bart discovers that Matt is following a Chore Monkey script, rather than bonding with him naturally. Homer and Milhouse bond whilst topping up the
engine oil of Homer's car, and cooking
engine block pizza. Bart in turn becomes jealous of the time Homer and Milhouse are spending together. Whilst playing videogames with Bart, Homer fantasizes about playing with Milhouse instead, before taking the latter out on a fishing trip to the park. Out with Marge at the same park, Grampa reflects that his own relationship with his father was just as dysfunctional as his relationship with Homer. Upon noticing Homer and Milhouse (whom he mistakes as Bart) fishing, Grampa reminisces that he still has the chance to be a good father. Bart meets up with Kirk in the Van Houten's garage. Grampa discovers that his girlfriend got pregnant by
Jasper Beardsley instead of him, and is first shocked, but then immensely relieved. Bart and Kirk head to Itchy and Scratchy Land, only to find that Homer and Milhouse are also visiting the theme park. The two pairs of characters begin a
go-kart race, but after Kirk crumbles under the pressure and brakes suddenly, Bart flies out of the kart and hits a stop sign. Homer rushes to help him, apologizing for his earlier obstinance. Bart calls him "dad", which pleases Homer greatly, and the two rekindle their relationship. Despite Kirk confessing that riding in a go-kart with Bart was the best time of his life, he and Milhouse also make up. The four characters all ride out of the park, stealing two of the theme park's go-karts. In an
epilogue Blake negotiates with
Maggie, trying to get her to spit out her pacifier, but fails. Bart, Homer and Abe watch baseball together. ==Production==