Dennis & Gnasher Unleashed!
Dennis & Gnasher Unleashed! is a program for kids on CBBC. Dennis & Gnasher are joined by their friends Rubi, JJ, Pieface and his pet potato, Paul in the all-new action adventures of Dennis & Gnasher Unleashed! The program has been available since 2024. A total of 103 episodes have been broadcast, most recently in November 2025.
Last episode
Dennis & Gnasher Unleashed!
Dennis and the gang can’t wait for their all-day PE training day with Grizzly Griller and are baffled when their idol makes them learn a range of boring non-sports that only Walter excels at.
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Dennis is on his last warning – one more prank in school and he will be sent to Grim Lane School.
Dennis doesn’t realise that the pressure he’s putting on Rubi to excel in the school science fair is giving her a severe case of inventor’s block.
Series 1
Animated series. Dennis and the gang train Bertie in the art of standing up to people so he can rebel against Walter's bossiness.
Animated series. A snake bite causes Grizzly Griller to forget all his survival know-how, so it's down to his greatest fan Dennis to help him.
Series 2
Dennis is accidentally elected class president and is eager to shed the burden that comes with the title. However, every daft class policy he declares only makes him more popular.
In a somewhat misguided attempt to resolve Dennis and Walter’s spiralling competitiveness, Miss Mistry offers thumb wrestling as a solution.
Doctor Pfooflepfeffer’s first act as head of governors is to turn Bash Street School into a boarding school. However, the pupils devise a series of daring attempts to escape.
Walter’s pampered cat Clawdia persuades her way into the gang, and only Gnasher can tell that she has a hidden agenda to oust him from Dennis’s life forever.
The gang enter Pieface into a comedy contest to make him realise how brilliantly funny he is. Determined to win the crown, Walter uses the latest WilburCorp gadget on the unsuspecting audience.
Series 1
Animated series. When Walter leaves his pampered pet croc to fend for itself, Dennis and the gang help him to get in touch with his wild side.
Animated series. Power-hungry Empress Miasma takes control of Gnasher from the inside and uses him in her attempts to take over planet Earth.
Series 2
Torn between practising Blamjitsu with the yeti and helping the Dinmakers write a new school song, JJ tries to combine the two by bringing the yeti along to band practice.
With all his mates unfairly kept inside at lunchtime by a cranky Mrs Creecher, Dennis is exasperated to find that he can’t land himself in detention, no matter how much he misbehaves.
Eager to prove her babysitting ability for a permit, Gran is on the hunt for a baby stand-in. Walter is suspiciously all too willing to offer up Bertie.
Paul the Potato is love-struck by the poster girl potato advertising WilburCorp’s new line of super-posh chips. The gang stage a daring potato rescue in the WilburCorp factory.
With Paul on vacation, Pieface falls under the influence of a fiery chilli pepper and unexpectedly turns rogue.
Series 1
Animated series. Dennis and JJ get competitive on school sports day, but who is sabotaging both their chances of winning?
Series 2
In the run-up to the school play, spooky goings-on around the school make the gang wonder if the mythical Bash Street Bogeyman might be real, and still stalking the corridors.
Series 1
Animated series. There's a werewolf-type creature on the prowl and suspicion falls on Gnasher. Dennis has to prove his best pal's innocence.