Lincoln Loud is a thirteen-year-old boy who lives with ten sisters. With the help of his right-hand man Clyde, Lincoln finds new ways to survive in such a large family every day.
Luna learns Chunk was like her in high school, and worries her ambition to be a rocker is unrealistic.
Lincoln wages war after his food is filched from the refrigerator.
When Carol Pingrey's photograph gets more "likes" on social media than Lori's, she tries to one up her.
Thinking it looks like fun, the other kids try to get in on Lola's home-schooling.
Lincoln has a plan for introducing himself to a new girl.
Pop-Pop introduces his new girlfriend to the family, and she seems great until she starts showing up unannounced.
When Lori and Lincoln visit the city, Lori struggles to be a city girl, while Lincoln finds out that Ronnie Anne has changed.
In order to avoid Luan's relentless April Fool's Day pranking, the Loud family hire stunt doubles.
Lynn is interested into winning a basketball championship. During the tryouts, she gets drafted to a terrible basketball team called the Turkey Jerkies that is sponsored by Flip's Food and Fuel. Lynn works to help make the Turkey Jerkies be winners so that they can win a basketball championship.
Mom and Dad decide to build a secret bathroom after they become sick of waiting in the long bathroom line.
Lucy is upset that Lori and Leni started watching her vampire series, as a new character is introduced.
After racking up tickets, Mom finds it more relaxing to perform community service than being at home.
To try and make gym class better, Lincoln and Clyde set Coach Pacowski and Mrs. Johnson up.
Luan teaches Lucy the ups and downs of pursuing a life in the arts.
Lisa gets invited to work at a prestigious science institute, seeing it as an opportunity to get away from her crazy and crowded family life.
Lincoln and Clyde worry that they may be too old to still be playing Ace Savvy.
Lincoln discovers that having a friend over means getting special privileges, and he takes advantage of that.
Everyone in the family has worked hard to save for family vacations. But as they drive to their destination, almost everything goes wrong that can go wrong for the family.
The boys struggle with whether to attend Liam's barn sleepover or Girl Jordan's awesome pool party.
The kids worry that Leni is too weak and they try to teach her how to be more aggressive.
Lincoln has to complete a woodworking assignment, but has a history of failure on the topic.
When the house is infested with termites, half the family goes to Aunt Ruth while the other half stays with Pop Pop.
When construction of a new Mustard Warehouse threatens Fishman's Pond at Tall Timbers Park when the Fishman's new eggs have been laid, Lana works to defend the habitat from the construction crew without having to get 10,000 signatures for a petitions. Though Lana takes a shortcut and does a swamp monster plot that soon gets covered in the news by local news reporter Katherine Mulligan.
Ms. Carmichael fires Leni from her job at Reiningers' when several scarves have gone missing. Taking on the identities of Ace Savvy and One-Eyed Jack, Lincoln and Clyde plan to find the real culprit behind the theft, where their antics begin to annoy Ms. Carmichael and store employee, Fiona.
Lynn Sr. enlists Mr. Grouse to watch over Lily while he and Kotaro go to Cowbella (a music festival dedicated to cowbell music) when the daycare center is closed, and Rita is busy at the dentist's office. Although Lily keeps doing something that causes Mr. Grouse to call Lynn Sr. for advice, Lily suddenly starts to see Mr. Grouse as a better father than Lynn Sr. for some reason, prompting the latter to try to prove that he is her real father.
Clyde thinks that he missed a day of school, and he fears that he's a fraud after winning a perfect attendance plaque. When he tries to inform Principal Huggins about this mistake, he is offered the position of junior administrator. When he is tasked on digitizing the school records, Clyde enlists Lincoln into reclaiming his (Clyde's) attendance records without the janitor Norm, Coach Pacowski, and Nurse Patti overhearing them.
Lola advances to the regional Little Miss Southeastern Michigan pageant at the Caribou Inn after winning the Little Miss Royal Woods Pageant, hosted by Cheryl. As Lori covers for Lynn Sr. and Rita into being Lola's chaperone, Lola worries about losing when she meets other contestants like Chinah, Claudette, and Jackie, who are better at everything than her.
In a follow up to "White Hare", the new girl, Stella, wants to hang out with Lincoln, Clyde, Liam, Rusty and Zach, and they soon suspect that she likes one of them. After Lincoln spends time with Stella at the Burpin' Burger, Stella starts to hang out with each one of the boys as they compete for her attention to see which of them she likes.
After witnessing an excess of lying in the family, Lisa invents lie-detecting glasses to try and curb the fibs.
Lincoln asks to borrow Clyde's new gaming system, but Clyde struggles to trust it's safe with him.
Lynn Jr. gets involved with Lori, Leni, Luna, and Luan's babysitting club, but the 4 aforementioned older sisters don't think Lynn Jr. is the nurturing type. Lynn's first gig is with the McCauley family, where she watches Caleb and Camille, but in a non-nurturing way, as expected. After Lynn's antics cause Lori, Leni, Luna, and Luan to lose their clients, they decide to trick Lynn into babysitting the Fox quintuplets, but they soon jump to conclusions and worry that they may have made a mistake.
Ronnie Anne is planning to go downtown to check out the street murals. This causes Rosa and Hector to worry about as they think downtown is too dangerous as Carlota and Carl spy on the behalf of the rest of the Casagrandes. When the tracker that is in Ronnie Anne's backpack falls onto a rat, most of the Casagrandes head out to find Ronnie Anne thinking that she is heading to a dangerous area while C.J. watches Carlitos.
Lisa gets invited to work at an institute and get away from her crazy family.
When Lori and Bobby attempt to have their daily conversation, a few misunderstandings lead to them having a rather awkward conversation. Because of this, the two fear that dating long distance isn't working out for them. With encouragement from their respective parents, Lori and Bobby attempt to show each other that they care for each other though various means, like signs of affection, a home video, and virtual dating, but when that ends up not working, the two decide to spend their day together, which is just as troublesome as when they were separate.
Leni tries to get her school friends and work friends to get along with each other.
After agreeing to go to the Royal Woods House of Terror, Lincoln and Clyde have to toughen up and face their fears.
Lola discovers Lucy has an old, fragile doll, and decides she must borrow it, no matter what Lucy says.
Faced with spending Thanksgiving apart, Lori and Bobby try to bring their crazy families together for the first time.
Hoping to win a song-writing contest, Luna contemplates whether she should go with a song that’s true to her sound or try to make something that the whole world will love.
After discovering he has rituals, Lincoln worries he's predictable and vows to change it up.
Lincoln worries that he is predictable after he discovers that he has rituals. Later, Lori develops the yips.
Lynn finally gets his restaurant open for business, but finds it more difficult than expected, especially with all the Loud siblings helping out.
Mom takes over after Lucy quits the school's writing club.
Luna and Sam embark on a challenge taking place across Royal Woods and they discover they have less in common than they thought.
Hoping to get closer to her crush, Benny, Luan tries out for the school play.