Mitchell discovers a hidden room behind wall the toilets in Strange Hill High. A knight from the room believes him to be a King and obeys his every word.
The gang discover that the school clock is actually a time machine.
Mitchell is accused of stealing from everyone in the school, and has until the afternoon to clear his name. He discovers a (insane) boy who has been lost behind the lockers for many years has accidentally framed him.
Becky wants to try out for the school musical. Only problem is that she's trapped in her dreams. And she can't sing.
Becky makes an unexpected enemy of the Tooth Fairy when she begins selling healthy food to fellow pupils.
When Mitchell is told that no student ever goes into the school library because of a mysterious book causing students who read it to disappear, he heads right for the library. And he drags his friends Becky and Templeton.
Mitchell wants to go to a concert, but the tickets are sold out. Maybe if he could get on to the school paper, he could get free tickets to review it - but he's got to write something interesting first, to show he's got what it takes to be a reporter.
During School Safety Week, Mitchell, Becky and Templeton are placed in detention and forced to watch an old school safety film from the 70's. This being Strange Hill, the trio soon find themselves trapped in the film itself.
Mitchell stumbles across an old, abandoned, blocked-off classroom whilst hiding from his teachers. Finding it is haunted by ghosts eager to work, he establishes a homework service.
Ordered to tidy up a science lab by Abercrombie, Becky is distracted by an array of school pets in cages. Mitchell and Templeton are more interested in a Matter Transmogrifier - and there are soon giant rabbits roaming the halls.
In her never-ending quest for popularity, Becky attempts to join the cheerleading squad. Donning a manky old bunny costume, she seems to begin bringing very good luck to those around her.
Becky sets her heart on defeating perennial School President Stephanie Bethany. But Becky -- desperate for attention and victory -- soon finds herself running against a clay version of herself!
Following the breakdown of a swathe of antiquated equipment, the school board gives Strange Hill a full high-tech makeover, complete with CCTV-like monitoring, computerised dispensers and robotic teachers. But all is a little too perfect for Mitchell, Becky and Templeton's tastes.
Mitchell is bitten by a sick deputy head and, every time the school bell rings, transforms into a disciplinarian wereteacher.
When Templeton's Science Fair attempt to blast into the cosmos backfires, he accidentally instigates a full-blown alien invasion - by aliens that seem remarkably familiar and have come to pay homage to the creator of the Universe... Templeton?!
Mitchell must pass the 'Hardest Maths Assignment Ever'. He cheats and ends up earning the mythical grade of 101%, breaking maths, and the world as we know it in the process. The kids' only hope in fixing this is a boy genius who was frozen years ago and has not been properly defrosted.
When Becky coaxes a wilting plant back to life in the old Strange Hill greenhouse, she gets more than she bargained for with an outbreak of plantlike PE teachers threatening to exercise the world into submission. Only Mitchell's sarcastically planted chicken nugget beast can save the day.
A new school security system is installed - and the cameras seem to record what happens in the future. When Templeton becomes security monitor and goes mad with this incredible, all-seeing power, the very existence of Strange Hill is threatened.
Mitchell causes havoc when he plays too many pranks on April Fool's Day - and unleashes a dormant Beast of Embarrassment that lives under the school.
Mitchell accidentally erases himself from history after deleting his school record, and has fun with his anonymity. However, when his friends forget him and he begins to disappear, he calls on the only person who can remember him in a bid to reboot his existence.
It's Valentine's Day and while attempting to sabotage Abercrombie's zero tolerance to romance, the trio discover a portal to the inside the headmaster's brain. What at first seems like the best thing ever soon turns into a nightmare as the bullies gain control of the headmaster. The only way to stop them is to test the old adage - the heart rules the head.
The friends find a lost exchange student on a mysterious desert island in the school pool, but the boy's size leads Abercrombie to worry he will destroy the building.
When Mitchell is issued a strange simulation baby doll to teach him responsibility, his first reaction is to bin it. But it keeps coming back and he soon realises that the doll is alive. From apathy to panic, and finally to parenthood, Mitchell soon appreciates that having Mitchell Junior around might not be so bad after all.
Becky, Mitchell and Templeton stumble across an underground lair that was once home to a league of 15th-century superheroes. Unfortunately, they also release Ye Olde Righteousness League's arch-nemesis...
With the annual Strange Hill Spring Festival approaching, Mitchell drives the music teacher mad and the kids get a mysterious new teacher who may have a deeper connection to the ancient event than the pupils realise.
Mitchell's desperate attempt to start his Christmas holiday early is scuppered when he accidentally traps everyone in the school.