When Dean snaps at Brainfreeze that he's a total "tofu brain" for breaking Dean's beloved D-tab, Brainfreeze takes it to heart. He doesn't want to be a brainless drain on his friends, so he confides in Madge, who has just the solution he needs: a brain food super shake. Trouble is, the shake - whatever Madge has put in it - works just a little bit too well, and Brainfreeze drinks a little bit too much of it. So much, in fact, that he can't surf. The residents of Monster Beach miss their friend. But can they outsmart Brainfreeze to get him back the way he was?
When Mutt reminisces about everybody's favourite Monster Beach adventures, he claims there was somebody there who nobody else remembers: Manny. Manny has a Scottish accent and gives insightful advice but not a single person apart from Mutt has ever seen him. He must be the invisible man! Well, not quite. The truth is a little smaller than that.
The monsters agree to star in Butterfield's latest venture - a safari designed to lure his beloved rich tourists to Monster Beach. They need the money so that Madge can buy a new freezer for the diner. But will they attract tourists, or scare them away for good? And will Dr. Knutt get the loving audience he knows he deserves?
When everybody forgets Dr. Knutt's birthday, he bewitches the weather and Jan and Dean realise they must right the wrong of the forgotten birthday or face a damp and stormy future. Trouble is, making it up to the most demanding and self-centred monster on the entire island is quite a task. What does a miserable megalomaniac like Knutt want for his birthday anyway? The answer: utter misery.
When Butterfield finds monsters on the front nine at his prestigious golf course, he makes them a deal: if he can beat them on the terrifying back nine, they're off the course for good. The monsters, caddied by Jan, take him on. If they win, they get access to all eighteen holes forever. The more they play, the higher the stakes become, and this truly spooky competition gets right out of control.
The murmurmen boyz (Knutt's favourite boyband) have hit the shores of Monster Beach. They're a sassy band of murmen trying to impress the murmurmaids - and driving everybody else to distraction. Jan, Dean and the monsters want their beach back, but trying to get rid of a boyband is harder than you might think.
When Jan and the monsters discover that Dean is playing a secret roleplay game with his secret friends, the monsters decide to join in. Jan sulks off, wounded at being excluded, while the monsters wreak havoc on poor Dean's game. As Dean's frustration at the monsters grows and his friends respond in abject terror, Jan realises that sometimes it's good to try and join in other people's hobbies, so long as you play by their rules.
When Dr. Knutt accidentally performs a body switch with Jan, both of them are horrified. Being someone else for a day can really shift your perspective though, and Knutt comes to realise that there are certain advantages to being a human child. Jan agrees. How can she convince Knutt to body-swap them back before he trashes her reputation and ruins her life?
When the power goes out at Monster Beach, Dean takes the opportunity to design a renewable energy plan for the entire island. Jan and Mutt accidentally lock themselves in the old power plant, so Dean has to rally all the other monsters - furious at the power outage - and use the power of the surf to supply Monster Beach with power and save the planet. Can't be that hard, right?
Lost Patrol's electrical settings are fritzed by electric eels, which transforms him from drill sergeant to happy hippy. The beach, relaxed and chilled on that first morning without him, is chaos by lunch time. Jan and Dean recruit Mutt to figure out how to get the real Lost Patrol back before Monster Beach is completely destroyed.
When Madge inherits a million dollars from her estranged husband, she promises Jan and Dean that she will spend it on better food for the diner. Before marching the scary monster down to the bank, though, they need to give her a bit of a makeover. Well, a lot of a makeover. As Madge practices being less like a monster, Jan and Dean try everything to transform her into a boring bank customer. One thing's for sure, Madge will never pass as boring.
When someone breaks Madge's favourite mug in the diner, Dean and Jan become detectives in a lockdown situation. Nobody leaves until they figure out who dunnit - and everybody in town is a suspect. They start with just a few standard questions, but the process of questioning the inhabitants of Monster Beach is, well, the opposite of standard.
Mutt throws caution where he always throws it - to the wind - as he jumps the infamous Devil's Crack in a death-defying aerial display that ends with him questioning everything. A new, improved, safety-first Mutt emerges. But who is Mutt if he isn't risking everything? Jan, Dean and Brainfreeze try to help him find a middle ground.
When Jan, Amphibia, Widget and Madge form an all-girl volleyball team to destroy Dr. Knutt's perfect run of wins in his own volleyball tournament, they need to muster all the girlpower they can find as Dr. Knutt throws everything at them he can muster. Except the volleyball. He's not very good at volleyball.
A whale terrorising the monsters while they try to surf turns out to be engaged in a long-standing battle of wills with Dr. Knutt. When the whale swallows Dr. Knutt and Dean, Jan and the other monsters must fight to free them. Inside the whale, Dr. Knutt has made a friend even more dastardly than he is. Can Jan get her brother back and rid Monster Beach of the whale or can Knutt's new friend figure different a way out?
Sneaky Butterfield and his snivelling sidekick Hodad have plans to purchase Monster Beach, which they can't do if Monster Beach is a town. Jan and Dean figure out that the only thing they can do to save Monster Beach is to officially turn it into a town. But first, they need a mayor. That shouldn't be a problem, right? Wrong. A monster of a battle begins over who is going to be the Mayor of Monster Beach. Dr. Knutt is keen as mustard. Will Jan and Dean end up rigging the election or will cooler heads prevail?
Dr. Knutt starts his own wrestling tournament and pits Jan and Dean against each other in the competition. Will Dean overcome his insecurity and will Dr. Knutt get that jacket he wants?
Dr. Knutt can't believe it when famous survivalist Rugged Roy falls from the sky on a televised mission to trek across the island. Jan and Dean must hide the monsters, but Knutt is Roy's biggest fan.
When Butterfield and Dr Knutt team up to form a supervillain league to drive the monsters off the island, they find themselves up against not just the monsters, but each other.
Jan and Dean notice that Stress Leave is even more stressed than usual, so they decide to get him a pet. Everybody knows pets stop people from stressing out. Don't they? But when it comes to Stress Leave, relaxing doesn't come naturally. Can Jan and Dean get Stress Leave to form an attachment and realise there's no point stressing the small stuff? One thing's for sure: finding out will be very stressful.
Widget's hand becomes animated by an evil spirit intent on taking over Monster Beach. So how will Jan, Dean and the monsters take the hand in hand?
When Madge and Headache's diner gets a case of the spookies, Jan and Dean find themselves ghost busting their favourite hangout. But saving your mates is hard when you're stuck in another dimension.
When Teddles reluctantly culls some of his extra stuff at the Monster Beach car boot sale, he loses his beloved teddy. Jan, Dean, and Teddles must retrace their steps through the junk to find him.
Dr Knutt is humiliated in argument and vengefully shrinks everybody. Trouble is, he accidentally shrinks himself too, and the antidote is all the way back at the lair. This could be a long walk.
When Dean and Brainfreeze lose their shorts in the sea, they quickly figure out the tikis are to blame. But how do you get your shorts back when you have no shorts? Turns out, with great difficulty.
Brainfreeze is bummed that his best buddy won't come to his once a month full moon parties. Meanwhile, rumours of a werewolf roaming Monster Beach persist, and Mutt is behaving really weirdly. But what really happens to an unhinged half-dog monster when the moon rises once a month? And who is this tedious accountant that keeps turning up out of nowhere? Jan and Dean decide to solve the mystery and save Brainfreeze and Mutt's friendship for once and for all. After all, how bad can it be?
Mutt and Brainfreeze find themselves on the wrong side of the Animal Control Authority. It's okay, though. Brainfreeze just has to register Mutt by filling in a form. How hard can that be? You'd be surprised. So with Mutt stuck in the pound, Jan, Dean and Brainfreeze decide to plan an epic and daring escape, with only a few tiny hitches.
Dean goes missing on Monster Beach and Jan must find her brother with the help of Amphibia, who figures out he has been abducted by Captain Kelp with a penchant for boardgames and a hunger for souls. The Captain proposes a deal. They play to win, and if they lose, they must work as his crew for eternity. But outsmarting a Captain Kelp in an undersea lair, playing a game where he wrote the rules shouldn't be that hard... right?
When Mutt, Lost Patrol and Brainfreeze discover a lost Tiki in the jungle, they realise they have to care for it as their own. Even when Dean draws up a co-parenting agreement though, raising a tiki is hard work with three monster Dads who have very different ideas about parenting.
Jan is super excited about her chilled-out girls' movie night. That is, until the obnoxious Dr. Knutt crashes the party.
Dean decides to make a scary monster movie with the cast of Monster Beach, but it's very hard to remember your creative vision when you're negotiating with literal monsters.
Nobody breaks the golden rule of Monster Beach - don't drop in on someone else's wave. Except for Dr. Knutt. So Dean and his artificially intelligent surfboard Surflexa must teach Dr. Knutt a lesson.
Everybody is excited when Icki Ikci island wins the wildcard entry to the fabulous Euro So Talented contest. The monsters form a band called Monster Metal Doom Party, and Jan and Dean become band managers. But when your drummer is an egotistical bad guy, someone keeps eating all the backstage chocolate cake, and it's all so stressful that people are losing their heads (literally), the managers have their work cut out for them, and the audience is in for a major surprise.
Widget and Brainfreeze find a treasure map (it was in Brainfreeze's pocket but he's just as surprised as everybody else is). They set off to find the buried treasure, keenly assisted by Jan and Dean. Soon they're joined by, well, pretty much every monster on Monster Beach. The only trouble is, nobody is very good at reading maps... and what is this treasure anyway?
When supreme megalomaniac Dr. Knutt finally decides he might like to make some friends, he goes about it the only way he knows how: by slipping a potion into their food and tricking them into hanging out with him. With Jan and Dean on the case trying to find an antidote, Dr. Knutt slowly starts to realise that perhaps having friends isn't quite what it's cracked up to be.
Dr. Knutt's volcano is set to erupt - unless Dan and Jean can stop it. The monsters wish they could help, but the chance to surf hot lava down a volcano into the sea might just prove too tempting.
Lost Patrol rescues Mutt from the stormy surf - what a hero. Trouble is, Mutt doesn't think he needs rescuing. The two of them have to fight this one out - on a surfboard in the middle of nowhere.
Brainfreeze accidentally conjures up a genie, but everyone on Monster Beach is too happy to use three wishes. What this bored genie really needs is a malcontent with no moral compass. Enter Dr. Knutt.
When Brainfreeze accidentally destroys Mutt's garage, the best friends decide to move in together. After all, they lived together once before. But will their friendship - or their house - survive?
When Mutt becomes possessed by the smelliest dog in the history of the world, Jan and Dean must save the town from the stench, which means asking for the help of the evil Dr. Knutt.
Nobody breaks the golden rule of Monster Beach: don't drop in on someone else's wave. Except for Dr. Knutt. So Dean and his artificially intelligent surfboard Surflexa must teach Dr. Knutt a lesson.
When Lost Patrol finds himself in a turf war with Dr. Knutt and the Tikis, it’s every monster for himself… until they both find themselves kicked off the beach. Maybe they can be friends after all?
When Mutt won't stop scratching, the cone he has to wear around his head picks up radio signals and he realises he has to save Monster Beach from the impending alien invasion!
When Brainfreeze and Mutt convince the tikis to rise up against Dr. Knutt, the tikis get out of control fast. Jan and Dean must broker an agreement… between a crazed hoard and a jilted megalomaniac.
When Mutt finds a car buried at the beach, he and Jan decide to repair it so that Jan can drive in the Volcano 500. Dean suspects that this is no ordinary car, and Jan could be in big trouble.
When Dr. Knutt accidentally mutates an infestation of termites, he decides to marry the queen and take over her army. The kids must stop the wedding… before Knutt becomes the main course!
When Amphibia mistakes two visiting lazy Aussie sea lions for an endangered New Zealand species, the kids invent a translating app to uncover the truth of who they really are.
Widget wakes up one day to discover her body has wandered off in the night - bummer! Jan and Dean help her find it… before it accidentally gets her married to someone she's never met.
