Boy meets his new pen friend, Gretchen and his friends get jealous when they hear 'bout it. When Boy makes cookies, they all try besides Boy, they have plans to get the cookies.
When Boy discovers that somebody is writing a fantasy novel inside his diary, he decides to act more like the story's hero and soon finds himself as one of the cool kids.
Boy, Girl, Dog, Cat, Mouse and Cheese meet the smug Smith twins, and agree to a scooter race around the park. The only problem is that somebody has to teach Cat how to ride a...
With Boy's new help-for-hire business booming, he overworks his unpaid employee, Dog, without realizing. Girl sets out to teach Dog a lesson about standing up for himself.
Mouse wants the other kids to stop being lazy and achieve some goals - in the form of breaking world records. With Mouse's relentless coaching, the family soon gets carried away.
When one of Mouse’s inventions accidentally sticks Cat’s discarded fur to Boy’s face, his new 'beard' suddenly makes him the most popular kid in school.
The family have been telling their deepest, darkest secrets to Cat for years. But when Cat finds one of Mouse's inventions that gives her intelligence and speech, she threatens to tell all their secrets if...
Girl is failing science class, so Mouse offers to help her learn. However, Girl decides it will be easier to borrow one of his inventions and cheat instead.
When Mouse accidentally saves Cheese's life from a toppling tree, a grateful Cheese becomes determined to thank him by doing everything she can for him.
Dog decides to show the family that he can be as tough as the wolves they are watching on TV. He joins a gang of street dogs and soon becomes leader of the pack.
When Mouse brings home an old ice cream truck, the kids start their own smoothie business. However, the town's lovable ice cream man, Uncle Bub, isn't happy about the competition.
Mouse is tested on his experiment to create the perfect family and is sure he will fail! However, his siblings convince him to hire actors to play perfect versions of themselves.
Cat sees one of Girl's comic books, which inspires her to become a superhero. Cat decides that she wants to become a superhero, and the other kids decide to help her follow her dream. Girl...
Mouse has built a rocket ship, and Cheese and Dog decide they want to go to Mars. But as it would be way too dangerous to actually send them into space, Mouse stages a fake...
Boy, Girl and Cheese learn that their animal siblings have a tough time with their tails and want to understand what it's like. So Mouse builds them mechanical tails to wear.
A dog show is coming up, and cool prizes are given to the winning dog and its trainer. Cheese, Girl, and Mouse all have great ideas for how to train Dog for the grand finale,...
Stevie Smith challenges Boy in the mini-golf tournament. However, as they practice, the actually become fast friends and neglect their training to hang out! When the contest arrives, it is revealed that Stevie was only...
Boy realizes that the family doesn’t have any kind of safety drill to use in an emergency, so he decides to train the family to become a well-oiled safety machine.
When Cat coughs up a magic hairball, the siblings use it to make all their decisions for them. However, when the hairball leads them to give away all their possessions, they realise it might not...
Mouse feeling sick of being overlooked by the family because of his small size, he builds an invention to make him grow. However, he will keep getting larger, and the bigger he gets, the more...
Boy's nose makes a weird whistling sound when he is asleep, which is no big deal unitil it is captured on video and goes viral. But is this new-found popularity a good thing?
With the rest of the gang sick, Mouse builds himself his own bubble to avoid contacting germs but the rest of the family wants one too that it eventually leads to them getting one and...
The kids' mean neighbour, Wanda, has started enforcing a dogs-on-leashes law. Boy, Girl, Cheese and Mouse each come up with ideas about how to show that Dog is special and doesn’t need a leash.
Girl decides to write her school project about Cat, as she is so mysterious and it would be nice to know more about her. The gang decides to help her and soon, everyone is following...
The kids are asked to watch their neighbor's pet hamster and are given strict instructions not to let it out of it's cage. However, Mouse dosen't believe any animal should live in a cage.
Lila has a brand new vlog that goes viral in school. Girl doesn’t like seeing her nasty rival have such success and so begins filming her own vlog about her family’s real life.
One day, the kids answer the door to find Wedgie, Cheese's missing piece. Wedgie is happy to have finally found her family, but she is so cute that Cheese gets jealous.