With the help of some suspicious ancient deeds Walter seizes Dennis' treehouse and claims it for his own. Dennis and co smell a rat - but they must first outsmart their own booby traps and break in to the impenetrable treehouse to rightfully claim it back.

Dennis is consigned to a day of hard labour stacking logs as punishment for pranking the Colonel during the holidays. He soon shows his fortitude and finds a way to menace up the chore into something more fun for himself and all his classmates...

Beanotown's latest arrival is Dennis and Gnasher's nutty neighbour's greatest rival. The Colonel's always been a magpie for medals, but has he met his match? Anyone who can transform Dennis and his gang from organised chaos into organised military menaces deserves every medal going...

Mr De Testa has installed the Confiscat-inator - a state of the art security system for contraband confiscated in class - password encoded and set to be locked tight until 2050! Dennis decides there's only one thing for it - they're going to have to bust open the vault. He knows just the menaces for the job... but someone has to crack the complicated mathematical code - and the only man for the job is Walter. If Dennis can get him to join the gang, then Beanotown school is about to witness the biggest heist it's ever seen.

Mr De Testa has installed the Confiscat-inator - a state of the art security system for contraband confiscated in class - password encoded and set to be locked tight until 2050! Dennis decides there's only one thing for it - they're going to have to bust open the vault. He knows just the menaces for the job... but someone has to crack the complicated mathematical code - and the only man for the job is Walter. If Dennis can get him to join the gang, then Beanotown school is about to witness the biggest heist it's ever seen.

Dennis spreads the word around Beanotown that he is planning the ultimate prank. Walter, Slipper and the Colonel devise a spy network to stop him, but, increasingly infuriated by Dennis' inaction, their spy antics escalate to fever pitch, backfiring on each of them as Dennis sits back and watches the chaos unfold.

After a pogo-stick palaver in gym class, Mrs Creecher decides Beanotown ain't big enough for her and Dennis, and calls it a day.

Dennis borrows his Dad's new hair restorer to use as ammo in his super soaker for a typical day of pranking at the Zoo and ends up turning the whole town into one big, bad hair day - including Dad, who is mistaken for a gorilla and whisked off to Beanotown Zoo! The menaces need to find a cure for the hyperactive hair follicles, and quick.

Dennis & The Din Makers go on a whistle stop tour of Beanotown, with a special gig planned to rock The Annual Beanotown Jurassic Model Competition - and ruin it for Walter! After failing to impress Gran with their din, she lends them a mythical amp of her own - with a word of warning, which the menaces ignore... and end up creating a sound wave so epic, it literally rocks Beanotown and its residents! The menaces will have to think quickly, and enlist some rather unusual tools, to disarm the legendary Megasonic 20k before any permanent damage is done.

Dennis hears a pest exterminator is inspecting the school and decides to have a little fun, menacing up a highly convincing Giant Ant costume for Gnasher - so convincing, in fact, that the exterminator shuts down the school for a whole day! Beanotown should be their oyster, as they take full advantage of the Giant Ant's ability to clear the streets - but the exterminator is not so easily deterred, and is quickly on their trail with a secret weapon of his own.

Dennis and his faithful hound Gnasher are out to make every day as much fun as possible, but their adventures often lead them into trouble. A shadowy government agency have managed to make a copy of Gnasher's legendary teeth in order to develop The Gnashinator - a top secret super weapon of epic proportions. But they have bitten off more than they can chew - and soon Beanotown is in tatters... there's only one master of Gnasher's gnashers - and that's Gnasher himself.

Dennis and his faithful hound Gnasher are out to make every day as much fun as possible, but their adventures often lead them into trouble. Dennis is left in charge of looking after the school's pet parrot, Polygon, for the weekend, which he promptly trains to menace Walter with water bombs. When Dennis and co nip home for some dinner and leave Gnasher in charge, Walter sneaks in and sets the parrot free... this doesn't look good for our troublesome twosome! Dennis goes to school with a heavy heart the next day to own up...

Dennis and his faithful hound Gnasher are out to make every day as much fun as possible, but their adventures often lead them into trouble. After a prank misfires and puts the school cook out of action, Dennis and co go undercover to give the pupils a day of school dinners they will never forget - only the headmaster, half a tonne of hyperactive lobsters and a school inspector who looks suspiciously like Walter stand in their way.

Dennis and his faithful hound Gnasher are out to make every day as much fun as possible, but their adventures often lead them into trouble. Dennis and co race against time (and specially appointed playground patrol guards Walter and co) to escape detention, in order to witness the unveiling of Mayor Scrimp's proud new statue... which Dennis and Gnasher have made some, ahem, modifications to.

Dennis and his faithful hound Gnasher are out to make every day as much fun as possible, but their adventures often lead them into trouble. After one of Dennis's pranks lands Walter in detention, Walter's parents invite Dennis and his parents over for dinner to trick the menace into confessing.

Dennis and his faithful hound Gnasher are out to make every day as much fun as possible, but their adventures often lead them into trouble. Dennis decides to get a pet pal for Gnasher to keep him company while he's at school. After a few misfires, they find the perfect playmate: The Abyssinian Wire-Finned Piranha. However, they find out too late that there is only one condition - they must never, under any circumstances, feed it pies... Uh-oh.

Dennis and his faithful hound Gnasher are out to make every day as much fun as possible, but their adventures often lead them into trouble. A tiger escapes from Beanotown zoo while Gran is babysitting Dennis and Bea. While the Senior Menace is distracted by a kickboxing game, Dennis sneaks out with a special tiger-catching contraption and heads off for an adventure...

Dennis and his faithful hound Gnasher are out to make every day as much fun as possible, but their adventures often lead them into trouble. Walter shows off some new tricks on his fancy skateboard, prompting Dennis to make a jibe that even his Gran could do tricks like that with such a high-tech board... the bet is on! But Walter secretly sabotages the trick, causing Gran to hang up her menacing shoes as a matter of public safety.

Dennis and his faithful hound Gnasher are out to make every day as much fun as possible, but their adventures often lead them into trouble. When the mayor ruins Cream Pie Day at Dennis's School by reserving all the pies for his own special Summer Fete, Dennis & Co orchestrate an elaborate pie heist - with a little 'help' from Angel Face, who secretly has her beady eyes on the pies for herself, and ensures the menaces are caught red-handed! How far will the boys go to liberate the pies from their rival menace and reunite them with their rightful owners? It might be worth a stint in detention after all...

Dennis and his faithful hound Gnasher are out to make every day as much fun as possible, but their adventures often lead them into trouble. There's been an outbreak of the super infectious Beanotown Cold and Dennis seems to be the sole escapee, leaving him the centre of attention for all the teachers in the whole school - nightmare! Dennis is run ragged and decides he needs a day off - if only he could find a way to catch the cold too...

Dennis and his faithful hound Gnasher are out to make every day as much fun as possible, but their adventures often lead them into trouble. Walter challenges Dennis to beat him in a game with proper rules - five-a-side football. But Walter secretly breaks his own rules, enticing Gnasher to puncture all the footballs...

Dennis and his faithful hound Gnasher are out to make every day as much fun as possible, but their adventures often lead them into trouble. Gnasher has a crisis of confidence when 'the world's greatest dog' comes to town, Kutta - a dog astronaut who has just orbited the Earth as part of a special Space programme. Dennis and co resolve to get the old Gnasher back by going one better; they make a plan to menace up a spaceship and spirit Gnasher away to the 'moon', to meet an 'alien' and return a hero... of course it doesn't quite go according to plan, and when the menaced up spacecraft goes out of control Gnasher must find his mojo in order to save the residents of Beanotown for real.

Dennis and his faithful hound Gnasher are out to make every day as much fun as possible, but their adventures often lead them into trouble. After a prank goes particularly wrong (or should that be right?) Dennis needs to find a way to pay for the damage. The menaces reason that the best way to raise funds is to offer a service everybody needs - a car wash. Sadly, however, Beanotown's cars just aren't that dirty - but where there's a Menace, there's always a way. Realising the natural enemy to a clean car is an indiscriminate bird, the gang menace up a remote-controlled airborne pooping system, but the fake-poop soon hits the fan when the Colonel - a keen ornithologist, naturally - decides he has to capture it.

Dennis and his faithful hound Gnasher are out to make every day as much fun as possible, but their adventures often lead them into trouble. The World's Largest Sausage is coming to Beanotown, and Dennis has promised Sgt Slipper that Gnasher won't eat it - or it's the kennels for good. The next day, a dog-shaped bite is found in the giant sausage, and Gnasher is immediately banged up. Knowing that his buddy is innocent, Dennis goes into Detective-mode, pulling out all the stops to find out who is responsible for snaffling the sausage segment and framing his faithful friend.

After Gnasher's ongoing feud with the postman stops Walter from getting his weekly subscription to Magnet Monthly, he makes a complaint to the postal service. The next time Gnasher goes to 'welcome' the postman, he's met with a large robotic vehicle with iron-strong tentacles - the Post-A-Tron. Gnasher is horrified - he's one gnash away from the world record for the largest collection of samples from Post Office-issue underpants! Dennis and co menace up their own robot to take down the Post-A-Tron and restore disorder to the post-boxes of Beanotown - but it'll take a plan of some magnitude to get the job done.

It's school photo day and Dad has demanded that Dennis stays squeaky clean for the perfect portrait - or he's grounded for a month! How hard can it be? Unfortunately, Walter overhears the deal and scuppers his lift to school, so Dennis has to negotiate a maze of mess and get seriously inventive in terms of transport to make it there on time. Will he dodge the dirt and make his parents proud?

It's fund-raising time at Beanotown School - and there's a reward up for grabs for whoever sells the most home-made cookies. Naturally, this leads to all out commercial warfare as Dennis and Angel Face take on Walter in the ultimate clash of the cookies. Who will take home the prize and who will take the biscuit?

Dennis and his family dodge a nightmare 'holiday' at militant Auntie Pru's and set off for Camp Sunshine for a week of family fun... only to find Walter and his Uncle in charge! Even bigger nightmare! Dennis has to find a way to inject some fun back into the holiday for everyone without getting thrown out in the process - and a treasure hunt looks like just the golden menacing opportunity he's been after.

After a typically traumatic bath time, Dad decides to take a leaf out of Walter's book and lures Gnasher into Claude the cat's luxury pampering tub. But, horror of horrors, sharing the bath has a strange effect on the two pets, as they seem to switch personalities...what's going on? More importantly, how do Dennis and Walter get their furry friends back to their usual scruffy and sleek selves?

Despite protestations, Dennis is assigned to Sgt Slipper's command for Take A Kid To Work Day. Grumbles all round - until reports start flooding in of garden-gnome thefts all over Beanotown... this might not be so boring after all! However, due to his ability to think like a master prankster, Mayor Scrimp tasks Dennis with finding the culprit - or copping the blame himself! Luckily, they have their very own police dog to sniff out the clues, so the menaces go into full on detective mode to find the gnome-napper and solve the case.

Walter finds a hand-written journal amongst the junk at the Beanotown Jumble Sale called The Book of The Menace, literally containing every trick in the book! What's a menace to do? No matter what they pull out of the pranking bag, Walter seems to be untouchable - anticipating their every move, and turning all their pranks against them. It's Dennis's worst nightmare come true - how will the gang usurp the new pretender to the menacing throne?

Dennis and co have to grow some cress for a homework assignment super-fast, or risk getting a detention... on the day of the Beanotown Comic Convention! Disaster! The menaces concoct a super plant food and borrow some exotic seeds from the Colonel - a keen botanist, naturally - but it works a little too well and soon Dennis and his pals have to deal with an overgrown lawn, and some errant water-cress hybrids with an insatiable appetite.

After Dennis and Walter mess up a science experiment, De Testa decides the boys would benefit from a bit of mutual understanding, and issues the rivals with a formidable challenge - they must each live the other's life for a day... and if they fail the experiment, they'll be teamed up for everything, forever! Dennis must teach Walter how to menace - and learn how to behave himself - in record time, in order to avoid a fate worse than detention.

A new patisserie opens in Beanotown right opposite Pieface's Dad's pie shop - and the crafty owner is determined to put his rival out of business... Quelle horreur! Horrified at the thought of the menaces being split up, Pie Face's Dad issues a challenge: whoever can cook the tastiest pie wins the coveted spot on the high street; and the loser has to shut up shop and leave town... easy as pie, surely?! All they have to do is find the right recipe...