Mush-Mush and friends' favorite play tree, the Fun Tree, is rotten and doomed. But Mush-Mush refuses to give up on it. In a last ditch effort to save the tree, our friends adventure off to try and track down the legendary Starmush, hoping his mysterious healing powers can save it.

When an egg blows down into the village, it is Mush-Mush and friends' mission to return it to Mush Mountain. Two problems though: there is a Beetle Boom on and all the beetles try to charge and knock over Mushables, and Lilit has always wanted to see an egg hatch so secretly drags her feet.

When Sushi-Mushi breaks the only spoon he has ever cooked with, he declares his cooking days are over! So Mush-Mush and friends step up to cook for everyone instead. How hard can it be? It turns out, very! The Mushlers will have to convince Sushi-Mushi he's still the best compost chef, even without his favorite spoon!

Chep is disappointed Mush-Mush and Lilit are too busy leaf-gliding to play moss-ball with him, so he hangs out with a new weevil friend instead. But Chep's new friend must migrate with all the other weevils. Except he doesn't know how to fly! Chep must teach him to fly while overcoming his own secret fear of heights.

Mush-Mush and his friends are determined to win the bark sledge race, but their essential fourth team member drops out. Our friends ask Mushpot to step up from being their coach to racing with them. The Mushelder is reluctant at first but soon reveals the tough competitor he is!

Having rescued a Mushlet, Mush-Mush, Chep and Lilit become heroes in Mushton, and they're loving it! So Mushlers create a rescue team but alas, no one needs saving! How can you be a hero when there is nothing to be heroic about? Then when some Mushlets become adrift on the river, Team Mush-Mush, with Morel's help, have to save the day again.

Chep wants to return a favor to Mush-Mush, but all Mush-Mush wants is to have a compost pancake on Pancake Day! But when the Food Snail falls for, and takes off after, the Travel Snail, Pancake Day has to be cancelled. Chep sees an opportunity to save the day for his friend! But er, how do you solve a snail falling for another?

It's Fool The Forest Day when Mushables pull pranks, and MM has an epic one planned. But they spill Chanterelle's painting dye and instead must replace it by finding a rare Sloof beetle and milking it for its dye in front of everyone. Wait a minute! You can't milk a beetle! They've been pranked!

MM's favorite frog has had its home taken over by a lizard. Mushpot says not to interfere, nature must run its course. But Lilit feels so sorry for the frog she takes it back to Mushton where it causes havoc. Now our friends must lure the frog back to its home where it deals with the lizard itself.

When ants invade Fung and Miff's tree, our Mushlers offer for them to move in but the two quickly turn out to be unbearable roommates. So when Fung and Miff break their trampoline, our friends decide it's time for them to go back to their homes. But first they need to get rid of the ants.

Mush-Mush is amazed by the way Mushpot uses his staff of wisdom and how awesome it makes him look. Mush-Mush wants to be as cool as Mushpot and asks him to lend him his staff of wisdom. But the staff comes with a lot of responsibilities.

The Mushlets love Mush-Mush's heroic stories. But when they demand to see him actually do something heroic, Mush-Mush feels he can't back out - and so ends up stuck up a cliff. Relieved to be rescued by Chep and Lilit, Mush-Mush is about to admit that he isn't a hero when the Mushlets find themselves in danger. Now Mush-Mush has no choice but to be a real hero!

Wanting to rush off to climb Mush Mountain, Mush-Mush is in a hurry checking nectar level in flowers - a job that takes time and care. Soon Mush-Mush's haste causes disaster when he scares all the bees away. Now Mush-Mush and friends have to find a way to lure the bees back…

So Mushpie can take a break, Mush-Mush, Chep and Lilit offer to look after the Mushies, assuring her that everything will be fine. But a Mushie pops to become a Mushlet and escapes. Our friends find him in Muddler's clutches! Now, they must figure out a way to save the Mushlet and return the other Mushies to their cave before the return of Mushpie.

All the Mushables have fun zooming down a long mudslide except Chep, who just can't get up the courage to do it. But when Fung and Miff tease him for being scared, he promises that he will do something that no Mushable has ever done before - ride a grasshopper! Chep is in for the ride of his life!

Puff doesn't like change much. And with spring about to burst forth and all the changes spring brings, he is puffing out nervous fog which is blanketing the whole of Mushton. Mush-Mush and friends need to get Puff to relax and celebrate spring together with all the other Mushables!

When Lilit creates a 'friends tree' mapping out who everyone is best friends with in Mushton, she realizes Muddler has no friends at all. Unable to accept this, Lilit slips away to try and befriend him. But Muddler's perception of friendship is somewhat unique, meaning Lilit now needs the help of her two best friends, Mush-Mush and Chep, to escape from Muddler's clutches.

Everyone in Mushton is finding that their precious wooden things are being munched and destroyed by someone or something. All the evidence points toward Truff's new woodworm pet Chompski. But Truff refuses to believe Chompski would do such a thing! It's up to Chep, Lilit and Mush-Mush to convince Truff. But first they have to catch Chompski in the act!

When Mush-Mush and Chep lose Lilit's flying disc down a snake tunnel, he is confident he can get it back. All animals love Chep and no one knows more about snakes than he does. But this snake is not to be messed with! When they finally sneak into the snake tunnel, they learn why the snake has been acting so strangely…

Chanterelle has built a whistle that can reproduce the most beautiful sound of the forest: the one of the Nightingale. When the whistle disappears, Mush-Mush, Chep and Lilit soon discover that it has been stolen by a beetle. In order to finally hear what a real Nightingale sounds like, they'll have to get it back!

Every time Mush-Mush has tried to surprise his friend with a gift, Chep has always found out what it was. But Chep promises that this time he won't. And Lilit, who is too honest to keep a secret, promises she won't let Chep know what the surprise is. Both of them find this so hard! But Mush-Mush is one step ahead of them…

When Fung and Miff spoil Mush-Mush's fun tunnel surprise he has been working on for ages, he wishes their day was ruined too. And then it is, because they are taken by Muddler! Now our Mushlers have to go on a rescue mission to save Fung and Miff.

When Mushpot wishes he could roll back the seasons and relive being a Mushler, our friends get him to hang out doing cool Mushler stuff. But this just shows that Mushpot is no longer able to do all those things. Sigh! However, when our friends find a map that points to a treasure he buried when he was a Mushler, Mushpot realises it's just the Mushler experience he needed.

The Beacon Mushroom that guides the Mushables back to Mushton in the dark has gone out. So Lilit lights up and stands in its place for the night and soon gets quite bored! Lilit's good deed has her regretting her gift she's basically just a lamp! But when her light goes out, Lilit instantly regrets regretting it: she wants her gift back!

Mush-Mush can't figure out why his sense foot keeps buzzing like crazy until an earthquake shakes the forest. Mush-Mush is sure he predicted it! Convinced he can now predict the future, Mush-Mush starts making predictions for everyone in Mushton.

Mushpie loves to sing. The only problem is she is terrible at it! But Lilit, who has never heard her sing before, wants to make Mushpie happy and organizes a concert for her to sing in front of all the other Mushables… who are terrified at the idea! But Lilit doesn't have the heart to admit this to Mushpie.

Chep is very excited: tonight, a rare and extremely stinky plant is going to bloom! But he already promised Mush-Mush to play their favourite game. When he chooses the flower instead, Mush-Mush is angry and the two friends stop talking. But when Mush-Mush realises that Chep is about to miss the blooming, he decides he won't let that happen and helps his friend!

When Mush-Mush, Chep and Lilit take their compost meals back to their home-tree to eat, they think they have made a great new discovery - compost to go! They set up a delivery service so everyone can eat at home too. It's so cool! Except Sushi-Mushi misses hosting everyone at the Food Snail, and everyone starts missing eating together.

If Mush-Mush had Bolly's speed, he'd want everyone to see just how awesomely fast he was. But Bolly is different - he just likes to use his speed helping Mushables. So when Mush-Mush organizes a big stunt for Bolly, he refuses. He just doesn't like to show off. But Mush-Mush promised everyone a show so a show he will give them with Mush-Mush performing instead of Bolly! Gulp!

Chep becomes obsessed with learning all about Mushlore - all the funny little traditions and things that Mushables believe in. Morel is the expert in Mushlore so Chep becomes his apprentice. But the more Chep discovers about Mushlore the more he becomes a true believer to the point that it becomes quite dangerous!

Mush-Mush can't wait to show his tricks of forest illusion to everyone. But Amanita keeps ruining Mush-Mush's performance by figuring out all his tricks. Grrr! When Mush-Mush decides to do his famous 'Disappearing Mushable' trick on Truff, Truff really disappears! And now, Amanita and Mush-Mush must join forces to find their disappearing friend.

Chep has come across a new seedpod specimen. Mushpot warns him not to take it though. But the temptation is too much and Chep can't resist taking the seedpod and opening it to find it is full of itchy powder! Argh! Mush-Mush and Lilit do their best to help their friend, but it seems like the only way Chep can get rid of the itching is to ask Mushpot for a remedy.

When Chanterelle sees how good Lilit is at painting, she offers to help her dig into her talent. But Lilit's art lessons conflict with the fun project she has been working on with Mush-Mush and Chep. And when she sees that her friends are having a great time without her, Lilit is seriously annoyed which her paintings start showing.

Chep is so good at moss-marbles, no one wants to play him anymore! No one except Sumush who reveals himself to be a tough competitor. To Chep's disbelief, Sumush keeps on winning. But Lilit and Mush-Mush convince their friend not to give up. Chep decides to play his favourite moss-marble: the Rollinator. The one marble he never risked playing before.

When Mush-Mush discovers that Morel is afraid of the dark, he suggests that Chep, Lilit and he take the Mushlets to their first overnight forest camp. Morel is relieved. But when Mush-Mush and his friends later come back, panicked, and reveal that the Mushlets have disappeared, Morel has no choice but to face his fear and join our friends on their rescue mission in the dark!

Mush-Mush is very proud he invented a new game called Fruity Bounce, where he and his friends bounce as high as possible on the bouncier fruits they can find. Little did he know, the Mushups were fruit-bouncing way before he, Chep and Lilit did. So, Mush-Mush decides that if he can't be the inventor of the game, he'll at least be the best at it. Mushlers vs Mushups, game on!

Starmush's back is stuck, and the Mushelder has no choice but to ask for help in Mushton. Because Chep is the one that finds a solution to his back problem, Starmush chooses him to help with his daily activities. But Mush-Mush is jealous, he would have loved being the chosen one…

Because he has won the moss-ball game last year, Puff is in charge of organizing this Summer's Picnic. Only Puff isn't comfortable in that role. Mush-Mush, Chep and Lilit offer to help and make sure all the Mushables will follow Puff's lead. Gradually, Puff gains confidence and ends up bossing everyone around. Now, all the Mushables are about to flee the Picnic!

Mush-Mush wants to be just like Starmush when he grows up, because he's convinced that Starmush is the most awesome Mushable there is and that his daily life must be extraordinary. So, Mush-Mush trails Starmush, which soon annoys the Mushelder. To get rid of Mush-Mush, Starmush decides to live up to the Mushler's fantasies…

Mush-Mush, Chep and Lilit are playing dares and having a lot fun. All the Mushables are happy for them except Fung and Miff who keep mocking them. When Mush-Mush reply they should play together to see how fun it is, Fung and Miff accept. Mush-Mush surprisingly gets along with Fung and Miff until one dare too many.

Truff is happy. He has found a necklace that makes him even Truffier! Except he had no idea the necklace belongs to Starmush. And the Mushelder promised there will be consequences for whoever took it. Mush-Mush, Chep and Lilit now have to save Truff from being consequenced.

Fung and Miff have come across a rare piece of bark struck by lightning. Chep desperately wants to add it to his collection, but Fung and Miff have no intention to give it to him. Now remembering every time Chep has been nice to them, Fung and Miff end up doing something they never thought possible…

Lilit is under pressure. Truff, the most talented musician in Mushton, has invited her, Mush-Mush and Chep to form a band with him. Only problem is they can hardly play music! Truff insists: they just need to relax and feel the groove. But when Truff tells his new band they will perform at the Food Snail, Lilit isn't relaxed at all!

Chep knows so many things about nature that Mush-Mush and Lilit are confident he's not far from being an expert like Mushpot. So, when Travel Snail seems unwell, Mush-Mush and Lilit encourage their friend to take care of her in Mushpot's absence. Chep's diagnosis takes everyone by surprise: Travel Snail is expecting baby snails! At least that's what Chep is convinced about.

When Chep asks Mush-Mush and Lilit to go storm-watching and they refuse, Lilit feels bad and convinces Mush-Mush to join their friend. But there are no storms on the horizon. When they notice Chanterelle going through the forest mysteriously, our Mushlers decide to find out what she's up to instead. That's when a big storm starts brewing on the horizon.

Mush-Mush, Chep and Lilit notice that Mushpie seems in great shape lately. They want to feel as great as she does and try to discover her secret. When they realise that she works out every morning, our friends decide to join her. And soon, all the Mushables do too. Now Lilit notices that Mushpie doesn't seem in such great shape anymore.

Because Mush-Mush, Chep and Lilit are always up to new adventures, Bolly has dubbed them The Adventurers. Flattered, our friends invite Bolly to choose his challenge to become an Adventurer too. Bolly will have to be the first Mushable to set foot somewhere. Mushton being crowded, Mush-Mush suggests they find an island, somewhere on the giant lake.

Chep has been watching Sushi-Mushi test new compost fritters recipes. When Mush-Mush gets to taste one, he can't believe it: Sushi-Mushi has cooked the perfect fritter. He tells the news to everyone in Mushton and now, all the Mushables want to taste the perfect fritter too! Only problem is the pressure is so high Sushi-Mushi can't remember the recipe anymore.

While they are enjoying the longest day of the summer, Mush-Mush, Chep and Lilit realise that the forest is drying out. Worried, Mushpot explains to our friends that the Tree of Life, that regenerate the entire forest, is dying! There is only one Mushable who could help Mushpot to save the forest: Starmush. But the Mushelders haven't gotten along for years. Will they be able to put their differences aside in order to save the Tree of Life before it's too late?

Mush-Mush wants to impress the Mushlets by showing off his sensing gift. But his sense-foot doesn't work like it should. This is a disaster! And when Mushpot explains that some Mushables have to wait until they become Mushups to see their gifts fully developed, Mush-Mush is frustrated. He wants to master his gift now! Mush-Mush discovers that the solution he's looking for might be in The Dark Dark Forest. Mush-Mush decides to take his friends Chep and Lilit on a little trip.