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That's not fair!!!
Life is not fair! Horrid Henry feels that the rest of the world is against him and he wages a constant war against the adults. Like any headstrong young boy, he is determined, relentless, he doesn't hold back and he never admits defeat! He will stop at nothing to outwit the enemy and teachers, relatives and babysitters avoid him at all costs.
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.
Mum accidentally throws away an object Henry is sure that gives good luck.
Sharing is something that Henry and Peter dislike doing, but is there anything they can do about it?
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.
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.
Henry is told about a pet show that he is not interested in. However, Fang wants to participate.
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.
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 sees what the world would be like if he didn’t age. He finds some unexpected paths in the student’s lives.
Henry has to be good to get a special treat.
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 gets stunned when he thinks that Peter can read his mind.
Margaret demands Ralph to make his own club.
Henry creates a new delivery service.
Mum and Dad go to Henry's Parents Evening, but find a nasty surprise along the way.
Mum and Dad go out to Peter's Parents Evening, but find themselves talking about Henry instead.
