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.

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.

Henry must keep a diary of his day for homework.

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.

Henry always wants the lead part in the school play, but this time he clearly doesn't.

When Peter has a sleepover, Henry decides if you can't beat them, then you just have to join them.

An important Football match takes place on the same day as Stuck-Up Steve's Birthday Tea. How can Henry find a way to watch this important match?

Dad decides to get Henry a Saturday Job cleaning up the Park.

Is Super Sammy, Peter's French Pen Pal really super?

Henry and Peter take turns being gardeners.

Henry gets the Hiccups, and he could possibly break a world record in doing so!

Henry finds a dog and must make sure that he finds its owner without Mum finding out.

Henry can't decide what to call a kitten as they try and make situations to prove that it should be the name they wanted it to be.

Henry tries to find a way to watch a Gross Class Zero DVD that's so gross that no parent can watch it.

Mum wants to extend her vegetable garden which means taking down Henry's Fort.

Henry wonders why everyone is being secretive around him.

Henry thinks Margaret has been invaded by Aliens when she suddenly starts being nice to him.

Peter is on the way to winning a singing competition, but Moody Margaret wants a piece of the action as well.

Henry accidentally spills Mum's perfume on the night before her wedding anniversary, so he and Peter must make a batch before she finds out.

Henry and Dad think that going fishing is better than going shopping.

Henry thinks running a School is like being King for the day, only except it's not!

Henry thinks that the visiting Bossy Bill is making Peter's life miserable.

Henry accidentally submits a drawing that he risks is gonna get him into big trouble, so he teams up with Margaret to retrieve it back.

Henry imagines a world without any ice cream when the ice cream man retires from his job.

Henry forms a new money-making service to buy toys - Petsitting.

Henry's school tries out School Uniform - to horrendous results.

Henry, Margaret, and William are all on the TV show Kidswap, and so swap houses for a week.

Henry and Peter are in the kitchen, making a romantic meal for Pimply Paul and Prissy Polly, who are babysitting them for the day.

Henry is forced to be in The Happiest Family Contest until he hears that the grand prize is an island getaway.

Mum thinks that the family needs more exercise, so she enters the household into a Fun Run.

Great-Aunt Greta babysits Peter and Henry while their parents are out for the weekend. However, Henry is up to something great and horrible.

Henry realises that age is no excuse for bad behaviour.

Henry gets knocked out and dreams about being a grownup and he's going to marry Moody Margaret and Peter has two identical sons.

While waiting for ballet class to start, Henry catches Miss Battle-Axe and Soggy Sid at a really embarrassing sight - Ballroom Dancing.

The Family go green and install a wind turbine.

Henry saves Miss Oddbod's Cat, but Peter takes the credit.

Mum's Biscuits are a big hit with Henry, and he's determined to know what the secret recipe is.

Mum thinks that Henry should get a haircut.

Henry ends up getting spots on Fame for a Day.

Henry and Margaret compete for the best snowman to win free Ice Cream.

Mum and Dad go to Paris by air and Henry and Peter go to summer camp. Henry is desperate to escape.

Henry imagines what it would really be like if he was king.

Henry and Ralph take a shortcut so they can win a 5 mile race against the Brickhouse Boys.

When Prissy Polly and Vomiting Vera come to visit, Henry ends up in a situation in having to change Vera's stinky nappy.

Henry is desperate to find the answer to a really gross question in order to win Gross Class Zero prizes.

Henry, Stuck-Up Steve and Rich Aunt Ruby go shopping to find Henry's Mum a birthday present.

Fang the Hamster has gone missing.

When Henry's Dad gets a new job across the country, Henry's family has to move away from Ashton.

Something fishy is going on with Margaret being the Magazine Queen! Henry and William attempt to find a scoop on the action.

Henry's Dad goes on an Antique show.

Henry and Dad build a Go-Kart ready for a big race.

Henry and Peter go with Prissy Polly, Pimply Paul and Vomiting Vera to see The Happy Hippos movie in the Cinema.

Henry is upset when Ed Banger starts singing "Nice" songs.

It's Take Your Child to Work Day again, and this time Mum is taking Henry.

Grounded for not doing his homework, Henry is worried that he will miss the Zero Zombie's gig whilst Ralph tries to stop Margaret from getting in it.

Thanks to yet another of Henry's pranks, Peter thinks he's becoming a werewolf.

At first, Henry has to deliver a message to Miss Oddbod from Soggy Sid. Trouble ensures when everything gets all mixed up!

Henry and Steve have a plane battle.

Dad's time management plan for Henry's family goes too far.

Henry goes to the park with Great Aunt Greta to have a skipping lesson and a picnic.

It's the Purple Hand Gang vs The Secret Club in a war for the school climbing frame!

Henry buys a raffle ticket and thinks he's won the lottery.

Henry discovers a booger in his nose and want to show it to his friends.

Henry's genius homework excuses go too far when his class has to write the hardest essay they've ever been set.

Henry delivers his most elaborate homework excuse yet.

Henry dreams of himself being a grown-up.

Rabid Rebecca returns as Henry's substitute teacher, and she's come prepared this time!

Mum's Tickly Treats keep disappearing and Henry gets the blame.

Horrid Henry's mother urges him to take a walk in the park.

Henry gives Mum a spa treatment as a Mother's Day present.

Henry feels depressed for a day.

Henry goes to get himself the new Gross Class Zero comic, but Moody Margaret snatches it off him.

Horrid Henry finally gets a scooter he has always wanted.

Henry decides that he wants a scooter than anything else in the world.

Vera gets lost during her christening.

Mum wants Henry to have a hobby and her idea is Henry being a stamp collector like Peter.

Dad's Brother, Francis, comes round for lunch and Henry discovers that even as adults, they still cannot get along.

Tired of never getting any birthday or Christmas presents every year, Henry begs his parents to give him one early.

Horrid Henry has to babysit Vicious Vicky!

Henry and Margaret start a fashion show to sell Henry's old clothes.

Dad and Peter go paintballing.

Mum, Dad and Peter accidentally leave Henry behind at home. A lifetime for Henry!

Henry enlists the help of his friends to break a mysterious code.

Moody Margaret wants to be a supreme Superstar at the fashion show.

Henry goes to a Secret Club sleepover at Margaret's house.

Henry gets the part in an Amazing Phantom movie!

Henry proves the director of the movie that his friends have the talent to be in the movie.

Henry becomes a member of the Best Boys Club just to go to Goody-Goody Gordon's birthday party. But things go wrong when he does NOT get his star.

Henry's latest prank leads to his entire class getting detention, and on the same day as an important Ashton Juniors football match!

Mum wants Henry to not be horrid for a week.

Margaret teaches Susan how to be a girl and life as a leader.

Henry does not want to be present at the theater, until he finds out who is performing!

Fang is challenged by a Boodle Poodle.

There's a new girl in Henry's class and she turns out to be more trouble than she seems.

After Mum and Dad ban Henry from everything, Great-Aunt Greta gives him a special spinner.

Henry becomes an entertainer and Margaret's party is crashed when Peter is, too.

Henry's family take part on Family Fresh Air Day.

Henry feels like he gets the blame for everything.

Henry helps Rude Ralph to persuade his dreams.

Peter has had enough of Henry's horridness.

Henry goes to work with Pimply Paul delivering the milk.

Henry finds out who spies on his Purple Hand Gang.

Henry has been brought face-to-face with Margaret.

When Miss Oddbod suggests to "sell the school", Henry and Margaret take it too seriously.

Henry begs Dad for a new mobile phone, while Peter's DJ gift from Great-Aunt Greta has gone too far.

A banana starts a series of problems for Henry.

Henry thinks his Winter Wish comes true when it snows.

Henry invades Moody Margret's Pirate Party.

Mum keeps Henry's comic when he has to do chores.

Henry completes a difficult quiz to win Gross Class Zero tickets.

Henry does his homework, and for real this time.

Henry makes a hit song but becomes annoying when loads of people want to join in.

Peter encourages Henry to rewrite the Purple Hand Gang rules to make everyone happy.

Mum says that Fang is "So Not a Hamster". However, he soon proves himself when Henry has trouble with sorting socks.

Henry is having a really bad day, until Great Aunt Greta and Doddery Donald come round for lunch.

Henry searches for a missing sock with big help from Vera.

Henry imagines if his parents were Perfect, but soon regrets it.

Henry wonders why he is taken the blame for everything.

Margaret thinks Henry stole her mobile mirror.

Henry's yoyo is confiscated, so how can he get it back?

Rude Ralph is missing, and Henry is desperate to find out where he's gone.

A competition between Peter and Henry happens when Henry becomes a recycling ambassador.

Henry is late for school and everywhere is locked.

Henry borrows Ralph's phone and it gets confiscated.

Moody Margaret decides to become a president of the free world and Henry is excited to have her out of his life.

Henry learns that data can be dangerous when Peter becomes Chief Secretary of the Purple Hand Gang.

Henry gives all his toys away so he can visit toy heaven.

Henry and Margaret go to war to create a new motto for the school.

Soggy Sid thinks that wearing warm winter clothes is not appropriate for the snow.

After the school play is cancelled, Moody Margaret refuses to accept defeat.

Peter is desperate to meet the author who wrote stories about a character called Mr. Tiddler.

Henry invents a 'Purple Pass'.

Peter solves a mystery about a hashtag.

Getting tired of being punished for little things by Miss Battle-Axe, Henry decides to go on strike.

Henry is not ready for school on the first day of term.

Henry gets a Gross Class Zero cushion.

Henry explains why he held hands with Margaret at "Our Lady Giddiantus" in his own movie.

Henry thinks that he is going on holiday to somewhere exciting and realistic but ends up somewhere very boring.

Henry wonders if Dad is overworking himself.

A competition goes on with Henry and Margaret in regards to the Zero Zombies.

Henry isn't impressed that it's his birthday again.

King Henry and his team go on a mission to save something.

Margaret decides to 'change the game'.

Henry doesn't get a message, or does he?

Henry and Ralph plan a very powerful raid.

Henry's classmates swap personalities from other people's.

Henry wonders how everyone's morning has been.

Mr. Soggington makes up a 'Detention Club' on the weekend for people who need detention. It then becomes fun with a good story.

When Henry brings Vomiting Vera into school, she proves handy when Goldilocks, Soggy Sid's fish - goes missing.

A Math test is coming up, and Henry doesn't know what to do.

Is Henry Too Cool For School?

A boodle poodle moves into Margaret's.

Henry teaches the viewers and Margaret how to be horrid.

Henry writes a list of his Top Ten Things.

Henry and Ralph become teachers for the day.

Miss Battle-Axe is acting very weird and Henry and his classmates see if Miss B has been controlled by an evil mastermind.

A song is coming on.

Henry completes a challenge and a part of it includes being horrid. This may not sound anything like breakfasts, but it will become clear when it comes to the show!

Henry discovers what love is.

Henry starts a service that claims to get homework completed. Henry calls on Peter when he ends up with more homework than he initially expected.

Sweets are being handed out to pupils at school and Henry wants to get one. Henry also has to get given an injection that has a very low chance of being given to a pupil.

Henry finds a false family tree chart, that was made to fool Henry’s dad, that claims he is a descendant of King Henry VIII.

Mum accidentally throws away an object Henry is sure that gives good luck.

A magic wand can do anything, which Henry and his friends aren't suspecting.

Henry fakes being sick to take the day off school, but Dad lets him stay home. A flatscreen television arrives the same day, and Henry and Dad try to set it up.

Henry loans a 3D printer from Brian, and they become inventors.

Henry runs for School Council, but finds an unsuspecting rival along the way.

Henry and Peter are tasked to keep quiet so Mum can focus. Henry is eventually motivated to keep quiet when Dad offers to buy a pizza if they remain quiet.

Henry is told about a pet show that he is not interested in. However, Fang wants to participate.

Henry gets stunned when he thinks that Peter can read his mind.

Mum books a dentist after a prank call caused by Margaret.

Margaret demands Ralph to make his own club.

Henry has a rival on his hands in the form of Perfect Peter, who wants to be horrid.

Margaret introduces Henry to the art of "Girl Talk".

Peter's new Sat-Nav takes the family on a crazy road trip.

Henry sees what the world would be like if he didn’t age. He finds some unexpected paths in the student’s lives.

Henry tricks Peter into convincing him that he has found a planet through his telescope. Peter does not know that the supposed planet is actually a grape.

Henry has to be good to get a special treat.

Henry's life stories are stolen by an author, so he takes revenge.

Mum starts a system for keeping track of Henry and Peter's behaviour, and Henry is persuaded to be good so he can win tickets to a movie.

Mum and Dad go out to Peter's Parents Evening, but find themselves talking about Henry instead.

Sharing is something that Henry and Peter dislike doing, but is there anything they can do about it?

Fang goes off to retrieve Henry's snotslimer after it is taken off of him. Fang also finds a cult-like group of hamsters that ran away.

Henry creates a new delivery service.

Mum and Dad go to Henry's Parents Evening, but find a nasty surprise along the way.

Henry learns how to play the cello, and Peter reveals that he has been practising air guitar in secret.

Henry makes up a new improved version of a popular game, but not the way he wanted.

Are the birds sitting near the Purple Hand Fort a source of good luck or bad luck?

Henry wants a new drone after seeing that Ralph has it and that he gets to miss school. The teachers also don't seem to know that Ralph is controlling a drone.

Margaret plans to build an improved Secret Club Treehouse.

Henry attends Moody Margaret's sleepover.

Henry rewrites membership rules for the Purple Hand Gang, but gets more than he bargained for.

Henry sits on a worm that he couldn't see, so he gets into an inescapable situation.

Henry has a dream where he gets a clone of himself.

Henry goes off to the Brainbox of the Year competition.

Henry creates a hotel at his house and gains an unsuspected visitor.

Margaret unveils her multiple YouGroove channels, one of which is poking fun at Henry. He then tries to convince Margaret to take them down.

Soggy Sid finds himself in the middle of a crime at the bank, and finds what seems to be a piece of Henry's shirt, so he suspects that Henry is behind it.

Mum and Dad go for a romantic weekend out of town, but it is not the kind they wanted.

Peter goes to Great-Aunt Greta's house for the weekend, to which she is still concerned that Peter is a teenager.

Peter narrates Henry's trip to the "Brain Box of the Year" competition.

Henry is chosen as one of the entries for the Brainbox of the Year competition, Peter stays with Great-Aunt Greta, while Mum and Dad go on a Great Escape out of Ashton.

When Mum goes out of the house, Henry takes advantage of his babysitter Mad Martin's obliviousness and watches the Gross Class Zero marathon. However, when the show comes to life within Henry and Peter's eyes, they are now on a mission with the Gross Class Zero crew to defeat the Evil Emperor - Darius Drek, and his children; Drusilla Drek and Damian Drek, and save the universe before it's too late.