It's Halloween and Horrid Henry prepares to go out trick or treating with Mum and Perfect Peter, who is dressed up as a bunny rabbit. Henry cuts his hair to make him scary and Mum grounds him. However, Henry has a plan; he tricks his Dad and sneaks out into the night, scaring kids from his school and stealing their treats. But the real challenge is Moody Margaret.
All of the children are collecting Gizmos out of cereal boxes. Gizmos come in different colours. The rarest on e is gold. For a while, none of the children have a gold Gizmo, but eventually, Perfect Peter gets one, and Horrid Henry tries everything he can to get his hands on it...
Horrid Henry has always had a way of sending any babysitters trying to look after him refuse to look after him again. But when Rabid Rebecca, the toughest teen in town, who every child is afraid of, comes to babysit him, it seems Henry has finally met his match.Henry discovers that his usual tactics just don't work, and he's forced to be even more inventive by teaming up with his brother Perfect Peter.
Just when Henry is settling down for a day of TV, his parents drag him out on a dreadful hike, much to his dislike. But eventully he finds out a way to hurry them home, which involves letting a bull loose...
While her parents are on holiday, Moody Margaret bunks in with Horrid Henry. However, only a single minute is enough trouble for Henry when having his arch-nemesis in the same house and/or room with him, so he decides to use his spectacular thinking to devise a plan and get Margaret kicked out.
Horrid Henry hates sports day. He never wins at a single event. So he is not happy when sports day arrives, and he must compete. However, there is a way for him to win this year, and that is if he cheats...
Mum is organizing the school fair and is on the hunt for old games and toys. Henry and Peter’s old games and toys, to be precise. Henry generously donates his Walkie-Talkie-Burpy-Slurpy-Teasy-Weasy Doll – in fact he’s glad to see the back of her. A little careful research and he’s located the mega prize in the Treasure Map too – oh, life is sweet. Or is it?
After spending some time eating school dinners, Horrid Henry is happy to be going back to having Packed Lunches for dinner time at school. But when he goes back to the Packed Lunch room for the first time in a while, he meets his new enemy - Greasy Greta, the Demon Dinner Lady. She uses the rule of 'No Sweets In School', by eating any sweets the children brought in their packed lunches. The only way to stop her is by playing her at her own game...
Henry's family dines at a fancy restaurant with Rich Aunt Ruby and Stuck-Up Steve.
It's another ordinary day for Horrid Henry, until he notices one thing: Mr. Kill is missing. Using his detective skills, Henry looks around his house and interrogates people who supposedly have the need for revenge against Henry for all of the bad deeds Henry has committed to them. With no progress, Henry decides to talk with the one person who could possibly have a good revenge against him: Perfect Peter.
Horrid Henry's class go for swimming lessons at the local swimming pool. Henry, unfortunately, isn't good at swimming, so he is not at all pleased to go. Later, at the pool, he decides to play a horrid trick on all the good swimmers, by telling them there's a shark in the pool...
Henry's home made time machine takes Peter back to the future, to visit the Peter Museum. Peter is delighted, he always knew he was special. But even he doesn't realise quite how special, until Moody Margaret brings him back to the present with a bump.
When Stuck-Up Steve comes to stay for Christmas, Horrid Henry decides to make sure Santa Claus gives him the right presents...
Every year, Horrid Henry's birthday parties are a nightmare for his parents. They always say they will never let him have another party, but they always give Henry another chance the following year. This year, Henry wants to go to laser zap, but he is banned for the trouble he caused there. His party is held at home, but it has games which Henry hates like 'Pass the Parcel'. Then Henry decides to use his new present - his Super Soaker 2000 Water Blaster - to make things a little more interesting...
After Perfect Peter loses a tooth and earns a pound from the Tooth Fairy, Horrid Henry grows extremely jealous over the fact that everyone he knows except him has lost a tooth. He decides to trick the Tooth Fairy into giving him a pound. Will he be successful?
Horrid Henry is taken to work by Dad and meets his boss' son, Bossy Bill, and he has to do everything he says or else. However, all Bill does is manipulate Henry into committing terrible acts which end up ruining the company's workplace. So, Henry decides to get back at Bill by tricking him into doing the worst possible thing at work, and secretly on camera for his father to see
Henry attempts to find a way to wiggle into a dinner party with guests Mr and Mrs. Mossy.
Henry accidentally paints Peter blue, is sent to his room, and plots revenge.
Henry and Margaret have a competition to see whose club is better - The Purple Hand Gang or The Secret Club.
After not being allowed to go to the funfair for a bad report card at school, Henry decides to be perfect like Peter for a day.
Peter is tired of being unnoticed for his good deeds, so he decides to be horrid like Henry for a day.
Henry and Peter are competing against each other for having tidy bedrooms in an attempt to go to their favourite restaurants for a Saturday night dinner.
To raise money for new toys, Henry decides to sell his parents' belongings to his friends, and sells Peter to Margaret as a 'slave'.
Henry's class are desperate to watch the football game live, but the only way to do so is to be the Player of the Match in a football game.
Henry puts Peter's favourite rabbit toy, Bunny, in the school's time capsule after not being allowed to put his slime in. Henry's now on a mission to retrieve Bunny or his pocket money is history but when he trashes the school gardens his dad tells him he will be having no pocket money for a long time.
After getting his pocket money taken away, Henry plans to run away from home.
Henry, Ralph and Peter form a band for their school talent show in order for Henry to win tickets to a concert.
Stuck-Up Steve tricks Henry into thinking the attic in his mansion is haunted.
Henry must face his worst nightmare: injection day.
Henry is after some money, so he aims to make some accidents on his family, but Moody Margaret gets the better of him.
Henry is worried that his friends Rude Ralph, Aerobic Al and Beefy Bert will see him wear pink underpants.
Henry cheats on a computer test, and now everyone wants his computer knowledge.
Henry invents a creature called a "Fangmangler" - a thing made out of his hamster, Fang.
Miss Battle-Axe is sick with the flu, and so a very strict substitute teacher is sent to teach her class.
Henry wants to ask the Queen his lifetime question, but Peter is personally chosen to meet her. Much hilarity ensues with only a slight hint of anti-royalism.
Henry is desperate to get new shoes.
It's the weekend and Henry is forced to do all of his chores.
Peter is distraught when Fluffy the cat runs away. Henry is the main suspect and it's up to him to find her.
Henry must stop Peter's endless obsession with fairies.
Henry takes his hamster, Fang, for show and tell, but chaos ensues.
At Perfect Peter's Birthday Party, Henry and Ralph want the event to be over in order to have Peter's birthday cake.
Henry must keep a diary of his day for homework.
Peter has had enough of Henry, so he plots his revenge on him by sending Moody Margaret a love letter until he confess the truth and is sent to detention.
Henry wants to go to Camp le Fun in France, but his family goes real camping instead.
Henry and Peter are locked inside the basement, and Mum can't hear them.
Henry cheats his way through a book-reading contest to win a prize, but it isn't what he hoped for.
New Nick invites Henry over for a sleepover.
Everyone is not well today so Henry helps out.
After a trip to the ice cream factory is cancelled, Henry and his class go to the town museum.
Margaret tags along with Henry, Peter and Dad on a trip to the aquarium.
Henry is forced to be a pageboy at his cousin, Polly's wedding. However, he soon causes the wedding to turn into an unanticipated disaster.
Henry is stuck in Madame Tutu's ballet class when he'd rather go to Karate.
It's Be Nice to Your Brother Day and Henry's got the chance to win a Class Zero game if he can be nice to Peter all day.
When Peter has a sleepover, Henry decides if you can't beat them, then you just have to join them.
Henry is 'encouraged' by Dad to take a Saturday job in the local park but can't resist recruiting someone else to do it for him. Meanwhile Peter is proving that the early bird catches the worm!
Perfect Peter's perfect pen pal Super Sammy comes to stay, but is he really Super, or just downright Slimy?
Peter and Henry are playing at being gardeners, but when nature starts to take over the results are disastrous!
Horrid Henry finds a dog in his garden but can he keep him a secret for long?
Henry and Peter adopt a cat, or rather it adopts them, but they just can't decide what to call it! Henry wants to name it Buster and Peter wants to name it Tiddles. Which will win? Tiddles or Buster?
When Ralph lends Henry the yuckiest DVD ever Henry wants to watch it right away, but try as he might he just can't manage it!
Mum decides to extend her veg patch which means requisitioning Henry's fort - how is Henry going to persuade her to give up her plans?
Mum, Dad and Peter are being very secretive. Could they have something special planned? Henry certainly thinks so!
Peter's well on the way to winning the school talent contest with his rendition of 'Frere Jacques', ably assisted by his uber manager Horrid Henry. But when Moody Margaret decides she wants a piece of action she turns svengali in a ruthless display of ambition.
When Henry accidentally breaks Mum's perfume bottle he's got to replace it, and fast. But how is he going to manage it without Mum knowing?
Henry and Dad find themselves on fishing trip together, which is better than being on a shopping trip, or so they think!
Henry thinks being Headmaster for the day will be like being King for the Day - only it's not!
When Bossy Bill turns up to make Peter's life a misery, Henry decides to step in and play big brother for real.
When Henry accidentally submits a project at school that could get him grounded for life, the race is on to retrieve it before the real damage is done.
Henry's new service to the community - petsitting - comes unstuck when Henry gets over ambitious.
School uniform is being introduced to Henry's school - he just can't let this happen, but how is he going to stop it?!
When the makers of Kidswap come to town Henry thinks the idea of swapping parents is a great one - how wrong is he?!
When Prissy Polly comes to babysit, Henry finds himself in the kitchen – but will his cooking be good enough to eat?
Who would have thought that Mum, Dad, Peter and Henry could ever be the happiest family in Britain?
Horrid Henry exercising – for fun? Now there's a thought!
Great Aunt Greta comes to look after the boys, so naturally Henry takes advantage!
Henry discovers that old age is no excuse for good behaviour!
n which Horrid Henry gets married...or does he?
When Henry sees Miss B and Soggy Sid in a compromising situation he realises he could turn it to his advantage - or can he?!
The family decide to 'go green' - but not if Henry has anything to do with it!
Horrid Henry is not so happy when he gets a haircut- he's wants a haircut of his own.
Henry and Peter are off to summer camp - but it's not going to be a holiday by any means.
Henry and Ralph take a shortcut but they soon discover that it doesn't always get you there quicker!
Horrid Henry changing a nappy - just imagine!
Fang has disappeared and no one knows if he's coming back!
When Moody Margaret becomes editor of the school newspaper and Peter becomes knitting editor Henry knows there a scoop to be had, he just can't figure out where it is!
Dad and Henry are building a Go Kart, and it's going to be the biggest and the best you've ever seen!
Henry's favourite author is TJ Fizz, and today is take your kid to work day! It's mum's turn, and she works for the library, but today, a certain someone is coming there!
Henry is going to be a rockstar, and no-one is going to stop him - except maybe Moody Margaret, who is up to her usual tricks!
When Dad decides it is time for Henry to lay off the TV and loud music, Henry finds that wise words can come from the strangest of places!
There is a full moon and Henry knows that is when the werewolves come out to play. Peter is worried about having hairy hands.
Henry knows that teachers can be weird, but he doesn't realise just how weird they can be until he has to deliver a message or two!
Henry finally gets a chance to fly the perfect plane - but then Stuck-Up Steve appears to spoil the fun.
Henry is not the only one worried by Dad's brilliant new idea to make the most of the day.
A day out with Great Aunt Greta! Henry thinks this could be his worst nightmare - but sometimes things just don't turn out the way you think they will!
It's the Purple Hand Gang vs the Secret Club when Henry and Margaret can't agree on who gets to go on the climbing frame!
Henry's feeling lucky, lucky, lucky, but will it be a case of winner takes all?
When Henry discovers an unexpected way to not do his homework, Miss Battle-Axe decides to take him on - with unexpected results!
Henry is master of excuses when it comes to not giving in your homework. But this time it looks as though he may have gone too far!
It's not always easy being a grown up - as Henry finds out when he ends up being grown up for a day!
Henry finds a sneaky way to get his homework done.
Sweets are being held out at school! Henry wants one. That means he has to take an injection check!!!
Henry makes up a discovery that can find a way to make him King.
Henry and Brian become inventors.
Henry and Peter get a pizza if they keep silent.
Henry gets stunned when he thinks that Peter can read his mind.
Henry is certain Fang will win the top prize at the Pet Show.
Mum books a Dentist after a prank call caused by Margaret.
Mum accidentally throws away an object Henry is sure that gives good luck.
Henry runs for School Council, but finds an unsuspecting rival along the way.
Henry and Fang find a way to let Dad buy a new TV.
A magic wand can do anything, which Henry and his Friends aren't suspecting!
Henry has a rival on his hands in the form of Perfect Peter, who wants to be Horrid!
Margaret demands Ralph to make his own club.
Margaret introduces Henry to the art of Girl Talk.
Peter's new Sat-Nav takes the family on a crazy road trip.
Peter is convinced a new planet in the solar system exists.
Henry imagines a life where he is at Ashton Primary forever.
Henry has to be good to get a special treat.
Henry's life stories are stolen by an author, so he takes revenge.
Mum and Dad go out to Peter's Parents Evening, but find themselves talking about Henry instead.
Henry wants to be good enough to attend an event with Dad.
Henry learns how to play the Chello.
Mum and Dad go to Henry's Parents Evening, but find a nasty surprise along the way.
Henry tests a new device.
Henry makes up a new improved version of a popular game, but not the way he wanted.
Henry creates a new Delivery Service.
Fang goes off to retrieve Henry's snotslimer. Fang also finds other lost hamsters.
Margaret plans to build an improved Secret Club Treehouse.
Sharing is something that Henry and Peter dislike doing, but is there anything they can do about it?
Are the birds flying near the Purple Hand Fort a source of good luck or bad luck?
Henry attends Moody Margaret's Sleepover.
Henry finds himself in a situation he cannot get out of.
Henry goes off to the Brainbox of the Year competition. NOTE: This episode takes place during the events of Horrid Henry and the Terrific Teenager, Horrid Henry and the Measly Mascot and Horrid Henry: The Great Escape, except focusing on Henry.
Henry rewrites membership rules for the Purple Hand Gang.
Henry has a dream where he gets a clone of himself.
Henry creates a Hotel at his house and gains an unsuspected visitor!
Peter narrates Henry's trip to the "Brain Box of the Year" contest. NOTE: This episode takes place during the events of Horrid Henry Wins the Cup, Horrid Henry and the Terrific Teenager and Horrid Henry: The Great Escape, except focusing on Henry with Peter narrating the majority of the episode.
Soggy Sid finds himself in the middle of a crime at the Bank, and suspects Henry is behind it.
Mum and Dad go for a romantic weekend away out of town, but not the kind of romantic weekend they wanted! NOTE: This episode takes place during the events of Horrid Henry and the Measly Mascot, Horrid Henry and the Terrific Teenager and Horrid Henry Wins the Cup, except focusing on Mum and Dad and in some cases, Fang and Fluffy at home.
Margaret creates her own YouGroove channel.
Peter goes to Great-Aunt Greta's house for the weekend, to which she is still concerned that Peter is a teenager. NOTE: This episode takes place during the events of Horrid Henry Wins the Cup, Horrid Henry: The Great Escape and Horrid Henry and the Measly Mascot, except focusing on Peter and in some cases, Fang and Fluffy at home.