After noticing that none of his sisters share his interests, Lincoln tries to mold Lily into his mini-me.
At the Loud House, Lincoln tries to ask his sisters if they would like to engage in some of his favorite activities. He asks Lynn if she wants to read comics, Luan if she wants to watch a sci-fi movie, Lola if she wants to collect coins, Lucy if she wants to go ghost hunting, Lana if she wants a peanut butter and sauerkraut sandwich and Leni if she would like to play video games. However, they all refuse, giving him specific reasons as to why they won't join him. This makes Lincoln explain to the viewers that none of his sisters share the same interests as him. However, when he sees Lily playing around with one of his video game controllers, Lincoln gets the idea to mold Lily into his liking. At that moment, Clyde arrives, asking Lincoln if they want to hang out together, but Lincoln denies, saying that he has other plans.
Throughout the day, Lincoln tries to mold Lily by making her like the things he likes, like coin collecting and building models. When that doesn't work, Lincoln resorts to hypnotizing Lily by attaching pictures of Ace Savvy on a mobile and spins it around, successfully making Lily like things Lincoln likes. Lincoln and Lily proceed to spend the day doing activities together, ending it with a game of chess at the park. As they leave, Lincoln tosses out Lily's blanket, believing she doesn't need it anymore. Unbeknownst to them, Clyde has been spying on them, coming to the conclusion that Lincoln is actively trying to replace him as his friend. Back at the house, as Lincoln and Lily (now donning one of Lincoln's polo shirts) play video games, the sisters arrive and ask what he's doing. Lincoln explains that because none of them want to do the things he likes, he taught Lily to like him, causing the sisters to look on with pure shock. Once night time comes, Lincoln reads an Ace Savvy comic to Lily as she sleeps, and he leaves, proclaiming that their friendship will last a long time.
The next day, Lincoln attempts to spend another day with Lily, but to his horror, she's not in her crib. He realizes that the sisters are attempting to copy what Lincoln did, having been inspired by his plan, ranging from:
Lynn using her to play baseball
Luan using her as a ventriloquist dummy named "Lil-Lil"
Lucy trying to get her to convert to goth
Lori trying to get her to watch her TV shows
Leni wanting to show her some fashion magazines (only to get "stuck" in Lily's crib)
Lisa using her as the subject of a dangerous invention
Luna making her a band mate (and nearly crushing her during a stage dive)
Lola using her a member of her tea party and Lana wanting to show her pets
Eventually, each one of the siblings attempts to run off with Lily, making all of them get into a giant fight. Suddenly, Lincoln tells them to stop, saying that they all have the same intentions, but that there's only one way to settle their argument: let Lily choose who she wants to hang out with herself.
In the living room, the siblings agree that whoever Lily crawls to, they get possession of her. They each pull out their respective belongings, and begin to bait Lily with them. However, as Lily becomes more and more stressed of her siblings' bribery, an angry Clyde barges in, still thinking that Lincoln is replacing him with Lily. Clyde tries to win back Lincoln by dressing up as a baby himself, much to everyone's shock. To everyone's astonishment, Lily crawls over to Clyde, where she grabs the blanket he's holding, revealing it's hers. Seeing Lily cuddle with her blanket, Clyde, unable to resist Lily's cuteness, hugs her. When Lincoln questions why Clyde's wearing a diaper, he explains that he thought he was trying to replace him, but Lincoln says that he would never replace Clyde. When Lincoln sees how happy Lily is with her blanket, he realizes that he and his sisters can't mold Lily, since she already has her very own interest, which is her blanket. When Lincoln asks Clyde if they want to hang out, Clyde declines, wanting to spend time with Lily more.
This marks the first appearance of Mr. Coconuts in the series.
There are some changes made to this episode in the Polish dub:
When Lincoln shows Lola his coin collection, he said his newest coin is a Polish złoty. In the dub, it's changed to Japanese yen.
In the dub, the disc Lincoln puts in the DVD player is a documentary film instead of a Sci-Fi.
The order in which Lily's siblings show her their possessions while saying something to win her attention:
Lincoln - An Ace Savvy comic ("Come on! It's Ace Savvy!")
Luan - Mr. Coconuts ("Wooden you like to be my friend?")
Lynn - A baseball mitt ("Low and inside!")
Lana - Izzy ("Izzy!")
Leni - An issue of Sixteen 1/2 magazine ("Look at the magazine!")
Lori - A TV remote ("Marisol?")
Lola - A teapot ("Extra sugar!")
Luna - A pair of drumsticks ("Walk this way.")
Lucy - A photograph of Abraham Lincoln ("Abe Lincoln.")
Lisa - Multiple cords and plugs ("I have more suckers!")
In the Latin American dub, there were just a lot of babbling, as everyone was talking at the same time.
Changing the Baby - The title refers to changing a baby's diaper.
High Noon - The title card art parodies an iconic shot from the 1952 film.
Casablanca - Lincoln's quote "I think this is the start of a beautiful friendship" is a quote from this 1942 classic.
Lady Gaga - When Luan uses Lily as a dummy, they mention the famous pop singer.
The Bachelor - The show Lori wants Lily to watch with her is a parody of this TV reality series.
Starship Troopers - The movie/show that Lincoln shows to Lily on his laptop Starship Groupers, is a parody of the novel.
Aerosmith - When Luna tries to win Lily's attention with her drumsticks, she said "Walk this way," which is a reference to the song "Walk This Way".
Charlie Brown - When Lincoln and Lily are getting clothes, there are yellow shirts in the background with black zigzag stripes that resemble Charlie Brown's shirt.
Seventeen - The "Sixteen 1/2" magazine is a parody of the popular teen magazine.
Batman: The Animated Series - When Lincoln is showing Lily all the stuff he has displayed on his bed, there is a comic book with a character who looks similar to Batman, and the way it looks is similar to Bruce Timm's art style.
Leni states that she doesn't like to play video games, despite the fact she didn't seem bothered playing one in "Driving Miss Hazy". She also plays video games with both Lincoln and Clyde in "Change of Heart".
Lucy refused to join Lincoln in ghost hunting, despite this she had no problem with this in "Suite and Sour".
The latter may be due to the fact that Lincoln asked her to hunt the ghosts in the house, whom she calls her "friends", while in "Suite and Sour" she is in an hotel she never has been before and, thus, she helps him because they would be hunting a ghost she never "met", meaning that she refused not due to not liking ghost hunting, but because she didn't wanted to hurt ghost she "befriended".
When Lincoln, Luan, and Lynn fought, from the smoke of their fight, body parts of other family members that didn't participate in the fight were seen:
When the sisters fight for Lily in the hallway, Leni's sunglasses are seen falling off, but when Lincoln stops the fight, her shades are back on her head.
In that same scene, one of Lincoln's legs is seen in the fight cloud, even though he wasn't fighting with them.
In the scene where Lola is driving her princess car toward Lynn, she is seen with a full set of teeth.
At one time, Lily is shown with a full set of teeth when the Loud kids were trying to convince her of choosing one of them, even though she is only shown to have one tooth.
In the same scene, Lily also has eyebrows, which she doesn't have.
Lynn and Lucy share the same room and have 2 separate beds, but when Lincoln visits them alone their beds are in the same place. The scene with Lucy was probably reversed.
When Lincoln breaks the sandwich in half for Lily, Lincoln's half has an bite on it, but, after Lincoln and Lily do a toast, and, when Lincoln bites the sandwich, the bite is gone.
Also, on the same scene, the crust is the same color as the bread.
Lori isn't seen coming into Lincoln's room for Lily, when he's looking for an orange shirt.
Lisa isn't seen walking into her room, while Lincoln and Lori are taking Leni from Lily's crib.
When Lincoln was giving Lily a bedtime story, one of her feet is missing.
Luna couldn't walk into Lisa's lab unnoticed, as Lori, Leni, Luan, Lynn, and Lucy were guarding the door and window in this room was whole time closed.
Lisa pointed Lily is missing, despite not looking at her.
In the Latin American version of the episode, Lana's line "Dang it!" is muted.