Dennis dresses Gnasher up as a rare breed of animal which he says is nesting in Bash Street School, hoping to get the school shut down on the day of a daunting and difficult test.
Source: CBBC
Series 1: 21. The Wrong Man-ace
Dennis is mistaken for a Beanotown baddie while in disguise to sneak into 12A film. At first Dennis loves being treated like a celebrity, but as things begin to go awry his frie ...
13-09-2025
CBBC
Series 1: 27. Freewheelin'
It's the famous Beanotown Freewheeler Derby! During practice, the gang realize Walter's go-cart is especially speedy. Worried that Walter will beat his record, Dennis creates a ...
12-09-2025
CBBC
Series 2: 13. The Comedy Crown
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 unsusp ...
12-09-2025
CBBC
Series 2: 12. The Abominable Showman
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 disgui ...
12-09-2025
CBBC
Series 1: 32. Gnashernal Treasure
The class dig up a mysterious time capsule which sets them off on a race to find hidden treasure before Walter or a greed-crazed Paul the Potato can find it first.
12-09-2025
CBBC
Series 1: 26. The Whole Tooth
When Gnasher gnashes Walter's portrait, he gets revenge with a titanium sausage that leaves Gnasher toothless and miserable. Dennis and the gang decide to stage a heist to 'borr ...
11-09-2025
CBBC
Series 2: 11. We Want To Break Free
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 ...
11-09-2025
CBBC
Series 2: 10. Bertiesitting
Eager to prove her babysitting ability for a permit, Gran’s on the hunt for a baby stand-in. Walter is suspiciously all too willing to offer up Bertie. Can the gang help G ...
11-09-2025
CBBC
Series 1: 31. The Fangtom Menace
Pieface's first sleepover in the den is troubled by spooky tales of a frightening Fangtom and Walter turning up with a demolition gang determined to flatten the den!
11-09-2025
CBBC
Series 1: 25. Postcards From The Veg
Pieface laments that Paul is looking peaky and needs a holiday. Dennis has a plan! But its only when Walter kidnaps Paul that he realises his chips are down and he needs the gan ...
10-09-2025
CBBC
Series 1: 25. Postcards From The Veg
Pieface laments that Paul is looking peaky and needs a holiday. Dennis has a plan! But its only when Walter kidnaps Paul that he realises his chips are down and he needs the gan ...
10-09-2025
CBBC
Series 1: 26. The Whole Tooth
When Gnasher gnashes Walter's portrait, he gets revenge with a titanium sausage that leaves Gnasher toothless and miserable. Dennis and the gang decide to stage a heist to 'borr ...
11-09-2025
CBBC
Series 2: 4. Pranksy
The after-school art club is under threat of imminent demolition. In trying to save the club, the gang end up on the trail of the mysterious undercover urban artist known only a ...
08-09-2025
CBBC
Series 2: 5. Blamjitsu Sensei
Convinced that Mrs Creecher is secretly a master of Blamjitsu, JJ persuades the gang to help trick her into revealing her blam credentials.
08-09-2025
CBBC
Series 1: 28. Were-walter
There's a werewolf-type creature on the prowl and suspicion falls on Gnasher. Dennis has to prove his best pal's innocence as the full moon shines down on Beanotown...
08-09-2025
CBBC
Series 2: 10. Bertiesitting
Eager to prove her babysitting ability for a permit, Gran’s on the hunt for a baby stand-in. Walter is suspiciously all too willing to offer up Bertie. Can the gang help G ...
11-09-2025
CBBC
Series 1: 27. Freewheelin'
It's the famous Beanotown Freewheeler Derby! During practice, the gang realize Walter's go-cart is especially speedy. Worried that Walter will beat his record, Dennis creates a ...
12-09-2025
CBBC
Series 1: 4. Raiders Of The Lost Sweetie
Mrs Creecher confiscates Dennis' rare sour sweetie, the Tongue Destroyer! Dennis is desperate to get the sweet back and takes his friends on an adventure to the school's Confisc ...
07-09-2025
CBBC
Series 1: 29. Dennis Tv
Walter launches his own mega-dull, hypnotic TV channel with a signal booster that swamps all other channels! Rubi helps Dennis set up his own TV channel with a more powerful boo ...
09-09-2025
CBBC
Series 2: 11. We Want To Break Free
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 ...
11-09-2025
CBBC