Gran sits in front of the television for so long that she turns into a cocoon, and with a little help from Dave who wants his favourite seat back, she hatches into a moth.
Dave and his friend, Zombie Katie, are working on a school project together about endangered animals, so George takes them on an expedition to the local park to see what they can find.
Dave enters Fuzzypeg into a competition to become the face of a new brand of dog food, which he unexpectedly wins. As Fuzzypeg embarks on a glamorous new lifestyle, Dave misses his pal and seeks a way to terminate his contract.
Gran buys a new loo, this lavatory has a tendency to flush its users into another dimension, and Dave and Gran quickly find themselves flushed and spat out in olden day Grimsby.
Gran has been particularly naughty lately and is sentenced to a stay in an old people's home. The home is the stuff of nightmares for Gran, and it's up to the Spuds to break her free.
Dave and his friends get lost on a school orienteering exercise having lost the map. Snatched by a flock of giant Tiger Pigeons and deposited into their equally giant nest, Dave must retrieve the map and get them all back to school.
Dave stumbles across a mermaid at the dockside who invites herself round for tea. Taking up residence in the Spuds' bathtub, Dave and his family must somehow persuade their unwanted guest to go back to her watery home.
Dave and his friends embark on a school trip along the canal where they awaken an ancient monster called Big Lippy. Big Lippy pushes them over a waterfall and sends them back in time, to the Jurassic era.
Dave finds a handheld computer game at the dump. The game involves blasting zombies which his friend Zombie Katie, finds rather insulting. Exacting her revenge Dave finds himself confronted with a group of very angry and very real zombies.
Dave is warned by a Fortune Teller, Madam Donald, that walking under a ladder will bring bad luck. He walks under one anyway, and soon a meteor is heading for Grimsby. It's up to Dave and his friend to catch it before everyone is squished.
Anna is training to be a magician with Dave as her assistant. Their disappearing trick is not up to much until Zombie Katie finds a spell book. Soon they can't stop but what will happen when there is nothing left to disappear?
Lil Sue has started a delivery company, Deliver Sue, and in a quest to raise money, Dave lands himself with a job. Anna thinks she knows how to deliver packages quicker than Dave though and soon a dramatic sibling rivalry unfolds.
Dave is thrilled when he wins an electronic home-help device called Barry. Finally, his family can boss something around other than him. It is not long however before Barry is overwhelmed by the Spuds' demands.
The water in the flat is off, and having not had a bath in weeks, Dave is sent down to the basement to find the problem. There Dave stumbles across a fellow stinker, Josh Gnarly, who invites him to join his skating gang, the NeverCleans.
Zombie Katie is so shocked by the taste of one of Gran's Fishermen's Enemy sweets that her life force leaves her body. Dave and his friends need to find Katie's naughty life force before it is too late.
Bedtime, and Dave has eaten a cheesecake that was not meant for him. Finding himself stuck inside a cheesy dream with the rest of the Spuds, Dave learns that the only way to escape is to admit what he's done and confront his cheesy guilt.
Anna and Dave are building a toy sloth from the parts given away free with every Bran Cran Krustee cereal box, but when their toy ends up bigger than Grimsby Heights, Dave and Anna must find a way to keep it under control.
Dave and his friends are enlisted as cheerleaders for their school sports team. With the help of Gran, they are going to put on the best, and only, cheer performance their Grimsby School has ever seen.
Betty gives Dave a bad haircut ahead of the annual community disco so Dave chooses to wear a wig. Unfortunately, his new stylish hairpiece comes with a few side effects.
The Spuds have planned a trip to the seaside for Anna's birthday, but when Dave's party food shrinks them, they must adapt and find a way for the outing to still go ahead.
Investing in GritBits to get them moving, the Spuds discover their new devices are faulty and cannot be switched off once attached to their wrists. The Spuds quickly find themselves unable to stop exercising.
Dave helps a local old lady called Tanya, who rewards him with a sausage. Is Dave imagining it or does something lucky happen every time he takes a bite?
Dave makes a Gareth shaped piñata for his friend's birthday, but Gareth is confused when the Spuds bash it to pieces. Convinced that Dave does not like her anymore, Gareth leaves and heads out to sea. Can Dave fix this misunderstanding?
School puts Dave on a work placement with his dad at the local dump. Sucked into the mysterious world of rubbish, an old cow and a group of unruly fridges teach Dave a lesson about recycling.
The Spuds launch a rescue mission when Fuzzypeg eats the flea that Dave is pet sitting for Lil Sue. Will they reach Mr Grumps before he is dissolved like food inside Fuzzypeg's tummy?
Dave has a bad day and tells a news reporter that Grimsby is rubbish. When his words are aired on the news, his whole town turns against him. With the help of his friends, Dave has to find a way to make amends.
Grimsby is putting on its annual community play and Anna wants the role of princess. Cast as a witch instead, the Spuds set out to prove that witches can have happy endings too.
Dave orders a water pistol with his birthday money but is sent a Happy Sparkle unicorn toy instead. Will it bring joy and sparkle into his grumpy world?
It is the Spuds' turn to run Grim Fest, the annual festival at Grimsby Heights, but their jealous neighbours, the Dups, are out to sabotage their efforts.
Dave is tired of following his mum and dad's rules. Creating a reverse fountain of youth in the bathtub, he shrivels himself into an old man and sets about making up rules of his own.
A sweetie thief has been reported in the town and the suspect looks remarkably like Dave. Dave and his friends must find a clever way to prove that he is not guilty.
The Spuds have a surprising day out when the lift in their tower block home, Grimsby Heights, delivers them to a desert island instead of the ground floor.
The Spuds visit Betty's sister, Aunty Barbara, on her farm. Put in charge of searching for Aunty Barb's chickens and their eggs, Dave goes on an egg-citing adventure involving magic beans.
The people of Grimsby believe the Twins are wise lifestyle gurus, able to predict what everyone wants before they know it themselves, but the Twins need a nap before they get cranky.
