Animated series. It is April Fools' Day and Mitchell is pranking everyone, but the embarrassment he is causing is making something stir beneath the school.
Animated series. When the old school teaching machines are replaced by slick new ones, strange things begin to happen.
Animated series. A new school security system is installed - and the cameras seem to record what happens in the future.
Animated series. When Becky coaxes a wilting plant back to life in the old Strange Hill greenhouse, she gets more than she bargained for.
Animated series. Mitchell cheats at maths and ends up earning the mythical grade of 101%, threatening the entire world in the process.
Animated series. When Templeton's attempt to blast into the cosmos backfires, he accidentally instigates an invasion by some familiar-looking aliens.
Animated series. Mitchell is bitten by a sick deputy head and, every time the school bell rings, transforms into a disciplinarian wereteacher.
Animated series. It's school election time and Becky runs for class president, with the help of a giant clay monster created by Templeton.
Animated series. Becky discovers that the old rabbit costume she's found in the locker room brings luck to both her and the school. However, there's a catch.
Animated series. Giant animals roam the school hallways after Mitchell and Templeton use a dusty old device they soon learn is a matter transmogrifier.
Animated series. Mitchell creates a ghostly homework service when he stumbles on a classroom that is occupied by the ghosts of students.
Animated series. Mitchell, Becky and Templeton get trapped in a 1970s safety film where anything that can go wrong, does, in a horribly unsafe way.
Animated series. Mitchell becomes a journalist for the school newspaper and decides it is easier to simply make stories up rather than look for real ones.
Animated series. When Becky and Templeton are sucked back to Victorian times, Mitchell and Mr Balding try to rescue them.
Animated series set in an inner-city school. Becky's healthy snacks provoke an evil fairy tale figure set on making children's teeth rot.
Animated series set in an inner-city school. Becky wants to audition for the upcoming Strange Hill High musical, blissfully unaware that her singing is awful.
Animated series set in an inner-city school. Things have been disappearing around Strange Hill High and the headmaster suspects that Mitchell is the culprit.
Animated series. When Mitchell turns back the hands of the school's clock, he reverses time itself. Soon, he starts mucking about with time.
Animated series. Mitchell, Becky and Templeton discover an ancient chamber behind the walls of one of the school lavatories. Inside, there's a giant stone toilet.
Animated series. With the annual Strange Hill spring festival approaching, Mitchell drives the music teacher mad and the kids get a mysterious new replacement.
Animated series. Mitchell, Becky and Templeton stumble across an underground lair that was home to a league of medieval superheroes.
Animated series. 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.
Animated series. During a swimming test in the dreaded Strange Hill swimming pool, the kids discover a mysterious island in the middle of the pool.
Animated series. It is Valentine's Day and while attempting to sabotage Abercrombie's zero tolerance to romance, the trio discover a portal to the inside his head.
Animated series. Mitchell erases himself from history after deleting his school record. At first his anonymity is fun, but he soon starts to disappear entirely.