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The family think a new baby maybe joining the household so get into training to be ready to help out.

Boy and Tuck offer to build a clubhouse for Cat and Charlotte, but the two boys have a hard time letting go of their wonderful creation, driving the two girls up the wall.

Mouse discovers that Dog is able to make a sad puppy dog that allows him to get whatever he wants. When Mouse asks Dog to use this trick to get the Professor to loan him a special rare rock for his experiment, Dog refuses. To get his own back, Mouse uses a special invention that allows him to impersonate Dog and get the rock.

K-Jam is moving into the neighbourhood and staying with the family for a while, but Girl gets insecure and thinks that her awesome best friend is trying to take her place.

When Girl and K-Jam find Gherkin crying because nobody likes him, he confesses to them that he wants to change and become nicer. After asking the girls to help teach him how to be nice, the girls reluctantly agree and recruit Girl's siblings to help.

Mom is worried that Gramps's daring lifestyle could end up hurting him, so she asks the kids to show him how to be safe by acting his age, which just bores thrill-seeking Gramps.

Boy and Girl have a contest to see whose best friend is the best of the best, but after taking it too far, they are in danger of losing Tucker and K-Jam forever.

To prove she can be selfless, Cheese begins granting wishes. When Lila Bird shows up to do the same, Cheese loses sight of her goal as she tries to remain number one.

Every year, Boy enters and wins the Pickle Prince competition. However, when Dog is convinced to enter the contest to give Boy some competition, a feud erupts between the two.

Dog has been hired as a security guard at the new community pool. When the kids discover the long line at the pool, they try to convince Dog to break the rules and let them in.

When Mouse feels left out of family activities, he searches the multiverse for an alternative family to spend time with.

When Girl gets the chance to put together the school fair, her friends and family jump at the chance to help, until she gets advice from Margaret, a hardened businesswoman.

Boy finally meets his penpal, Gretchen, in person, but she is nothing like she described herself in their letters. Something is off, and Boy wants to get to the bottom of it.

When Ripped Ab-Man asks Boy to help him win a game show, his siblings worry that he is being taken advantage of and decide to investigate.

Cheese tricks her family into going to a spa instead of the theme park for their vacation. But when her siblings have a bad time, Cheese decides to save the rest of the vacation!

When Cheese is disappointed by the role she was cast in for her favourite soap opera, she takes matters into her own hands to get a bigger role.

When Girl's football skills catch the attention of a little girl named Bella, she declares herself Girl's number one fan, but being a fan is more work than she thought.

Dog and Cat enjoy a collar-free lifestyle, until an animal-control officer thinks they are strays. Together, they must escape the only place worse than the vet - the pound.

When Boy's best friend, Tuck, is told he may have to go summer school, Boy agrees to tutor him. Unfortunately, tutoring Tuck is much more difficult than Boy expected.

Boy is ecstatic to find Mildred - the rarest Bobblehead on earth - in a bin. Soon, Mildred becomes an unhealthy obsession for Boy, and it's up to his siblings to intervene.

The kids are horrified to discover that their favourite spot, Paradise Grove, has been polluted by the Bobblehead Factory.

After causing a ruckus at the Town Fair, Dog asks his old sensei to train him to be calmer, but Dog's new peaceful attitude might be even worse.

After Cheese hears that the town has been invaded by an alien, the kids decide to investigate. Girl is sceptical until she starts believing that she is turning into an alien.

In order to avoid him spoiling the new Captain Callisto movie, the siblings have to be Gherkin's servants for a week.

After Mouse underestimates Cat, she figures out how to make his time machine work. After getting stranded in prehistoric times, they have to figure out how to get back home.

In order for Boy to fulfil his dream of becoming a Chosen Librarian, he and his siblings must complete the task of recovering a long-lost, overdue library book.

Exhausted by all her superhero work, Cat asks Mr Boots to be her sidekick. However, Cat gets jealous when it turns out that Mr Boots is better at being a superhero than she is.

Dad takes up ventriloquism as a hobby. The kids must find a way to stop Dad from embarrassing himself as he tries to showcase his new talent around town.

After one of Mouse's inventions accidentally hurts Cat, the kids convince Mouse to go to Farmer Joe's Tech Detox camp to learn how to function without technology.

After losing a bet, Mouse and Cheese are forced to spend time with Old Lady McGuire. Their annoyance fades when they realise that they have her huge game room all to themselves!

After breaking their games console, the kids decide to sell Boy's homemade cookies to raise money for a new one. All is well until they get some unexpected competition!

Susie and Dog set aside their differences to partner up for a figure-skating competition. All is well until they realise that someone is sabotaging them and their chances of winning!

Lila becomes a sci-fi fan and asks Girl to help keep it a secret. Girl helps by making a costume to help hide her while at the sci-fi convention - what could go wrong?

Cheese's short stories get published in the local newspaper. The only problem is that the details of the stories were 'borrowed' from her siblings' day-to-day lives!

After accidentally destroying Ms. Rodriguez's flowers, Girl enlists her siblings to help her cover up the accident.

It's time for the First Day of Summer Festival, and Cheese is ready to perform for the whole town. However, she is so excited that she refuses to listen to warnings about an imminent heatwave.

Noticing that Boy has been distant lately, Dog asks Cheese for advice. However, the advice she gives pushes Boy and Dog further apart!

When Lady Burlington needs her official portrait painted, the siblings convince her that Dog is the artist for the job. What starts as a fun art project soon becomes a nightmare!

The town has always revered the Smith twins' great-great-grandpa as a local hero. However, when the gang exposes him as a fraud, they need to find a way to cheer the twins up.

Girl, Cheese and Dog start a babysitting business, but their first client is a real handful! If they want to please him, they might just need to take Boy's advice.

Dog finds out he has fleas! But when he befriends them, he must hide them from his family to prevent them from getting zapped.

To celebrate Christmas, Mum and Dad suggest that the siblings make each other gifts. When Dog is assigned to give a gift to Cheese, she sneaks to find out what the gift is.

After discovering that she's a great 'professional protester', Cheese uses her newfound talent for personal gain.

Girl is the only one of her siblings who has absolutely no fear of anything - that is until she is introduced to the horrors of pizza dough!

Girl gives Cat her old favourite toy. Cat loves the toy until Girl starts insisting that Cat is playing with it the wrong way.

Tired of feeling like a loser, Mouse decides to play dirty to win Mazes and Monsters against his siblings, even if it means it takes away the fun of the game for everyone.

K-Jam and Girl have plans for the best day ever! However, when Cheese shoves herself in and takes over, she jeopardizes all of their plans!

When the siblings grow jealous of Boy and Girl going to school, Mouse offers to become their homeschool teacher. Too bad Dog, Cat and Cheese aren't exactly model students.

The kids' favourite aunt is coming to visit, but a petty squabble between Boy and Cheese puts the family's upcoming fun times in danger!

In order to get access to the test version of the sequel to their favourite video game, the siblings convince Boy to infiltrate a snobby clique of friends at school.

After Cat and Cheese are mistaken for young kids at the hotel daycare, they are forced into the baby play area. Refusing to be stuck there, Cheese plots to escape!

After the kids crash Mom and Dad's anniversary trip, they try to make amends by finding Gramps' long-lost wedding rings.