Collection of episodes from the CITV animated series based on the bestselling children's books by Francesca Simon. The episodes are: 'Horrid Henry Knows It All', 'Horrid Henry Flicks the Bogey', 'Horrid Henry: I Am Not a Hamster', 'Horrid Henry and the Dangerous Data', 'Horrid Henry and the Phantom Phone', 'Horrid Henry Loses Rude Ralph', 'Hashtag Henry', 'Horrid Henry Gets the Message', 'Horrid Henry and the Raid of the Century', 'Horrid Henry and the Number Gnomes Knowhow', 'Horrid Henry's Top Ten Things', 'How to Be Horrid', 'Horrid Henry and the Detention Club', 'Horrid Henry Mixes It Up', 'Horrid Henry's Birthday Bonanza', 'Horrid Henry and the Catastrophic Cushion' and 'Horrid Henry's Movie Moments'.