Homework, there should be an app for it. This time Henry really is set to make a fortune, and all because he does his homework. Or does he?.

When Mum throws out Henry's Lucky Thing he's convinced he's going to be unlucky for ever. But then he discovers that lucky is as lucky does.

It's not easy having to share everything with your measly little brother, and it's definitely not fair. Henry decides to do something about it.

What would you do with a magic wand? Henry's about to find out just how much mayhem a magic wand can cause.

When Dad decides to get a new TV he discovers that it's not all plain sailing, but Henry and Fang come to the rescue.

Henry's determined to be ahead of the game, so when Brian decides to play inventor he's first in the queue, but things don't always work out as planned, do they?.

When Henry decides to get himself elected onto the School Council he finds that he has an unexpected rival, and that all's not always fair in love and war.

All Henry has to do to get his favourite pizza for tea is keep quiet; silence is golden after all. But that's easier said than done, as Henry's about to find out.

Mum's latest scheme for getting Henry to do good might just work, especially if it means that Peter ends up being a little less than perfect.

Fang has set his heart on winning the Pet of Pets prize in the local pet show; how can Henry refuse to make his dream come true?

When Henry's snotslimer is confiscated for the 350th time, Fang is determining to get it back from him, with incredible results.

When word gets out that the school doctor is handing out sweets to her patients Henry decides to be first in the queue, but it turns out not to be as easy as he thinks it is.

Henry realises that if he isn't careful he's going to be at Ashton Primary for ever and ever. Now that's a scary thought.

Henry decides to step up his game, as he learns how to be a good son.

Henry decides to reach for the stars when he realises that the world of astronomy could use his talents.

When Peter convinces Henry that he can read his mind, it seems that anything is possible.

Henry discovers there's a new Gang in town, when Margaret persuades Ralph to go solo.

Henry's latest money making scheme is a scooter delivery service, but he quickly finds that he's not the only one with wheels, and that means upping his game big time.

When Henry's parents head off for Parents' Evening they've got no idea of what's in store.

When Mum and Dad go to Peter's Teacher Talk they quickly find out that all anyone wants to talk about is Henry, of course.

Henry discovers a whole new way to look at life when he joins in with a bit of girl talk.

There's no stopping Henry when he discovers that he's next in line for the throne.

There's only one solution when Henry discovers that his life story has been hijacked by an unscrupulous author who won't give it back.

Competition can come from anywhere, as Henry discovers when Peter decides to be a bit less than Perfect.

Anything Henry can do, Peter can do better, until he finds out that he can't.

Henry decides to invent his own version of the most popular game around, with disastrous results.

It's a clear case of identity theft when Margaret creates her own YouGroove channel and starts behaving like a certain very horrid boy.

It's time for the ultimate road trip when Great Aunt Greta buys Peter a new sat nav for his birthday.

When Henry decides to review the rules of the Purple Hand Gang membership, he gets more than he bargained for.

Henry finds himself going to the dentist; how did that happen?.

Henry discovers that life is never straightforward, especially when you're wearing a silly jumper.

Henry's often wondered what life would be like if he had a horrid twin; now he's about to find out.

Onwards is not necessarily upwards, as Henry discovers when he thinks about upgrading his tech.

Henry discovers that Margaret will stop at nothing to get the treehouse of her dreams.

Things are about to get really horrid for Henry when Soggy Sid vows to give him the most horrid day ever.

Moody Margaret's having the sleepover to end all sleepovers; Henry can't let her get away with that, or can he?

When Hotel Horrid opens for business, guess who's coming to stay?.

Teamwork saves the day when Henry's chosen to represent Ashton Primary in the Brainbox of the Year competition, and he finds out that if you fail to prepare you have to prepare to fail.

Mum and Dad have been planning a weekend escape for ages, so when both Henry and Peter are going to be away, they decide to seize the moment.

Peter gets the teenage treatment when he spends the weekend with Great Aunt Greta.

In which Peter decides to do the right thing, and Henry discovers why one worm is very definitely not the same as another.

Henry heads off to compete in the Brain Box of the year competition.

Henry decides to download a pilot simulation on the computer to get over his fear of planes.

When Henry's parents forget to give Henry his pocket money, he tries to make money by scouting around the town to find some lucky cash and realises that sometimes it's ok to ask.

Henry thinks about what would happen if he knew all about the ups and downs in life and how he would have changed if he tried harder in life, but would he still be the Henry he always knew - the mischievous prankster?

What is it like to be beyond the skies? Henry is about to find out.

When Henry looses yet another bet with Margaret, he has to show some of his embarrassing memories from his old camera but has a hard time finding it.

Henry wants attention from school students and also wants to lead the play Gets Forever.

When Henry goes on vacation and accidentally leaves Mr Kill at home, he is worried that he lost him.