All episodes

Rufus Hound is transported into a parallel universe and has to stop the evil Dr Muhahahaha from sucking every person on Earth down the back of their sofas.

Rufus faces a familiar-looking enemy as he tries to prevent Dr Mu from taking over the multiverse. All he has to do is negotiate three chambers containing his deepest, darkest fears, battle a giant broccoli monster, defeat his evil clone, destroy Dr Muhahaha's cloning device and prevent him from hitting his time-reversing reset button.

Everyone on Earth has suddenly developed really bad breath and Dr Mu is, of course, to blame.

Desperate to impress his arch-enemy and old school friend Dr Wu, Dr Mu decides to steal the sun, using a giant intergalactic space wormhole, a plan that threatens to leave the Earth quite literally out in the cold.

Dr Mu's latest hair-brained plan is to invade the Earth using pizza.

To defeat Doctor Mu, Rufus travels to the cartoon world to become an animated character.

Rufus is captured by Dr Muhahahaha and hurled into the Internet.

Dr Mu shrinks to the size of a bacterium to take over the brain of a queen.

Dr Mu mass-produces a robot/toaster army with which to subjugate the Earth.

Dr Muhahaha is gradually sending the Earth's population to sleep.

Dr Mu launches a games console that turns its users into zombie-like creatures.

Rufus finds himself forced to take part in Dr Mu's malevolent game-show.

The world's superheroes have gone missing! Rufus must save the day.