After moving to a new house, a 6-year-old girl named Emmy and her little 4-year-old brother named Max find a magical dragon scale that takes them to Dragon Land, a place where they meet magical dragon friends, Cassie, Ord, Zak and Wheezie the 2-headed dragon, and Quetzal the teacher at their School in the Sky.

When Ord becomes afraid of the dark, his friends show him that even a little light takes the darkness away and that there is nothing to fear after all.

Ord's selfishness by refusing to share anything with his friends at a beach party, especially a "wishing shell" he finds, sends him and then everyone else to a strange and unfamiliar land called “Kingdom Come” with no way home, since the owner, Mounsieur Marmadune, also refuses to share the key with them to let them out. However, Ord later learns that sharing with friends can make any wish come true.

Cassie has a new pet Caterpoozle called Poozie. When Cassie finds Poozie wrapped in some white stuff, everybody thinks she died. However, it is later discovered that Poozie changed into a Butterfairy.

Max becomes clumsy when it comes on learning how to tie knots and has lots of trouble on learning how to tie one. But when Whinny, the carousel pony, is missing and the dragons rescue her, Max discovers that knots are not a big problem after all.

It’s Ord’s birthday, but his friends don't have time to play with him. Feeling sad, Ord seeks out Quetzal who tells him to share his feelings with his friends. Afterwards, everybody gives him the best birthday ever, and little did he know that his friends were planning to make a surprise party for him.

Emmy dislikes losing, and while everyone plays freeze dance, she is always the first one to be eliminated from the game by being called out. Emmy decides to quit the game and heads home early, but Quetzal shows her that playing can be more fun than winning.

During practice for the Dragon Land talent show, Zak gets a thorn stuck in his foot after accidentally stepping on a Spiny-Pine and has to go to Dr. Booboogone, but he's very worried since has never been to the doctor before and is frightened. However, Dr. Booboogone shows that doctors are only there to help.

The group runs out of paint as they are finishing their I-Love-My-Mommy Day gifts. They set off for Rainbow Canyon to find more colors. However, when their map breaks, they must work as a team to put the pieces back together.

Melodious Do-Re-Mi birds flee in fright when the dragons and kids loudly join their early morning concert. Confident Zak knows that his gentle song will bring them back, but everyone else keeps ignoring him and scaring them away with their loud noises.

Quetzal tells Max and Ord to meet him at the Snow Dragon in the Stickleback Mountains, but they get lost in the snow on the way.

Max is enraged after losing Dragon Tag and throws a pod whipping it at a tree, releasing a Fury, a little creature who grows bigger when someone gets angry. To stop him from getting even bigger, Emmy and the dragons help Max control his anger.

Zak and Wheezie practice for tonight's concert hosted by Quetzal at Singing Springs, but they war over various songs they wanted to play and disturb the nap of a twelve-inch creature known eponymously as "The Giant of Nod". He desperately throws them in a tree trunk, so it's up to them to save the gang so they can make it to the concert.

Zak and Wheezie are having a sleepover, but Cassie is too homesick to go. Bringing something familiar from home helps, especially when she finds out how much fun sleepovers really are.

Ord wants to give his mother a very special birthday gift, so the Doodle Fairy draws a map to a meadow full of Giggle Flowers.

Cassie notices that all her friends have special talents except her, so she goes to the Talent Pool to finds a talent. However, the Pool turns out to be grumpy and refuses to give Cassie a talent.

A Purple Goo Cloud is going to rain all over Dragon Land, so everyone builds a tree house to shelter. However, Emmy becomes bossy and wants everything to be done her own way, until she learns how to share with her friends and give them what they want.

The friends embark on full sail to Rainbow Canyon, but Ord is too big for the boat and feels bad until he saves his friends from going out of a cave and over a waterfall.

Cyrus, a Slinky Serpent, steals a Rhyme Bird egg and Cassie feels let down that she did not speak up when needed.

Ord finds riding a bike for the first time is too hard and quits. Luckily, his friends lend a helping hand and Ord tries over and over again until he succeeds.

The friends help an air pirate, Captain Scallywag, find buried treasure.

The kids and dragons want to do a "Three Little Pigs" puppet show, but Zak, Wheezie, and Emmy argue over wanting to be the Big Bad Wolf at the same time, until Emmy decides to add a fourth pig to the story while she lets Zak and Wheezie play the wolf.

The Do-Re-Mi birds (from “Zak’s Song) have been kidnapped, and it is up to Emmy, Max, Zak & Wheezie to come to their rescue. When they learn that a giant named Mungus took the birds because he loves their songs, they teach him how to make his own music.

Cassie doesn't know how to roller skate and she needs to get her Jingle Flowers to Singing Springs on time.

Zak and Wheezie have had enough of always having to do what the other wants to do and wish they became separated from each other, so Quetzal gives them crystals that separates them. However, when they build a musical playground, they discover that they actually need each other more than previously thought.

Quetzal is sick and cannot help the gang make their kites, so the gang decides to surprise him by making their own kites.

The Dragon Fair has come to town and Zak and Wheezie are in the Sackberry Toss, but their biggest challenge is catching it. Luckily, Emmy helps them get better at their catching by practicing with a ball.

Cassie is excited about the School-in-the-Sky Parade, but she gets very upset and feels left out when her name is not picked and realizes she cannot ride on the Book Float. She feels sorry for herself until she meets Cosmo, a flower who also got rejected from the parade.

Max is nervous about his first day of school until Emmy takes him to the School in the Sky where Quetzal advises them, "When you're stuck, don't give up! Try something new".

The kids and dragons go on a quest to save Max's favorite comic book superhero, Mondo Mouse, from the Catnapper, using his "Mondo Mouse" comic book and 3D glasses.

The carnival has come to Dragon Land but the dragons are sleepy and cannot be very active since Ord has invited them for a sleepover at his house and he has a terrible nightmare which gives him trouble with his sleeping, causing everyone else to stay awake all night.

Quetzal and the dragons ask Max and Emmy to recolor a black-and-white Dragon Land when all color was washed out by a storm. However, Max thinks coloring within the lines is more difficult than he expects.

Ord is afraid that he lost his father's favorite Whack-It-Back Whistler forever, until Norm the Number Gnome knows where it is and shows everyone how counting to ten will help them find it.

A concert is coming up in Singing Springs, but Emmy accidentally breaks Wheezie's trumpet and is too afraid to tell what she did. Wheezie does blame Zak and later Cassie for breaking it though, making them feel bad.

Zak wants the rare Jugglebug for show and tell, but Wheezie is so noisy, she scares it away. With Max and Emmy's help the dragons find that working together gets the job done.

Wheezie gets a new pet Hairball named Slurpy and learns how to take care of him. However, after getting carried away with too many dragon berries swallowed whole, Slurpy ends up with a bad stomachache. Luckily, Quetzal advises them that hairballs like their dragon berries mashed.

Max is tired of being too short for almost everything and wishes he could be taller. So, when a pretty unicorn named Eunice loses her glasses, he discovers that being short may actually be useful for some things after all.

The kids and dragons visit the playground at the Cloud Island while Ord’s mother prepares a spring party. But when Ord suddenly hears thunder, he gets as scared as he can be and runs into a cave. The others help him brave the storm with fun games.

Max, Emmy, and their dragon friends help a wind blower called Windy learn to whistle so she can blow away the clouds, just like her father, the Big Whistling Wind.

Max's anger is out of control when he punches Emmy's arm and later kicks Ord's tail during a game of Dragon Ball when things don't go his way. Quetzal teaches him to redirect his fury, first by not hitting others, next using words, then action, to let it out.

Max accidentally breaks Emmy's yo-yo because he never listens to others. In Dragon Land, there is a game that can only be won by listening. Max hears what Simon says and wins Emmy a fixed yo-yo.

The kids visit the secret Treasure Trove with their dragon friends, but forget Quetzal's final instruction and end up lost. It is only by following directions and working together that they break free.

Quetzal asks Max, Emmy and the dragons to deliver a pair of Jumping Beans to his twin brother Fernando across the Stickleback Mountains, but the beans keep escaping. It's up to one of the friends to help get the beans back to their cage.

Cassie, Ord and Emmy plant a garden, but Max just causes trouble and messes everything up. When wonder water sends Max and a sunflower shooting to the sky, he now must find his own way to get back down with help from an elf named Squink.

During a game of Leap-Dragon, Zak and Wheezie accidentally hit a rock, sending it to one of the Backwards-Forwards Signs, and causing the entire Dragon Land to go backwards. When the mix-up becomes frustrating after a while, the gang must find a way to turn things around for them to go forwards again.

Max and Ord make a goo ball and the friends play catch with it, but it goes on the loose, and then rolls into a dark cave. However, Ord is still scared of the dark, so it's up to the rest of the gang to help Ord brave his fear of the dark once more to find it.

The friends are excited to go to a new theme park called Wonder World, but they have to go through many obstacles to get there, despite Zak and Wheezie's broken wing. However, when they finally reach Wonder World, everyone thinks this place isn’t Wonder World at all, since they think the obstacle rides were much more fun than the rides there.

Quetzal sends the gang to see the Dancing Crystals perform at Crystal Cave. Emmy doesn't think they need to follow instructions and the whole gang gets lost. She soon comes to understand why it is good to think ahead.

The kids and dragons encounter Mr. Pop, only to mistakenly steal Wheezie's laugh and all the sounds around. During a merry chase, they learn that everything has its own special sound.

Everyone goes on a boat ride through Dragoon Lagoon where Max makes friends with a Unifrog named Hoppy, who can say his name, despite Quetzal's objections that he can’t take him home because he would feel homesick and miss his family.

Max and Emmy coach a relay race in Dragon Land, but Zak is very nervous because he thinks he and Wheezie might get injured during the event by flying fast. So they use as much protection as they can and manage to win the relay race.

The kids and dragons enter a baking contest, hoping to win a cookbook for Quetzal. They split up to find the ingredients, only to return with the same thing. While making the cake, Ord gets carried away with the dragon berries as they are part of the ingredients. Despite winning second prize and not being able to win the cook book they were planning to give to Quetzal, everyone enjoys their delicious condiments.

When the gang uses Quetzal's magic pop-up book to make up stories, they all talk at once, but nobody listens. They soon realize that by taking turns, everyone's story gets to be heard.

The friends help a snowman called Chilly find his snow puppy, Nippy.

The kids and dragons build sandcastles so the Turtle Dragons can lay their eggs, but the castles are too close to the water and get washed away. They cannot give up, so the only thing to do is try again.

The gang inadvertently uses permanent paint and turn themselves into different colors. They must follow Quetzal's instructions in order to remove the paint from their bodies.

Zak is nervous on going swimming as he and Wheezie have never been swimming before, but he later realizes that trying new activities can end up being fun.

The gang must investigate why the weather in Dragon Land is behaving so oddly.

Max is summoned to Dragon Land by himself for the first time while Emmy is at the store with their dad. He accompanies the dragons on an underwater mission, only to discover a giant octopus who grabs them.

Dragon Land is having a fire fest and the gang is on practice, but Wheezie mistakenly drinks a Plump Gump Flower which puts out her fire breath, so Dr. Booboogone (from “Calling Dr. Zak”) gives them instructions on how she can get it back.

While playing a game of "Following the Leader", Emmy becomes bossy and wants things to be done her own way, and later ends up being captured by Pooky, a giant little girl Troll from the Towering Village, as she thinks Emmy is a doll to play with.

Ord plans a picnic at Rainbow Canyon and invites Emmy, Cassie, and Max. When Quetzal is doing some spring cleaning, Max is excited to find that his old magic carpet can still fly. He has so much fun riding on it, but doesn't know he is ignoring Ord until he falls in a Huggly-Snuggly Flower and Ord squeezes him out. Max apologizes to Ord for ignoring him and to thank him and prove that they're still friends, they ride on the carpet together.

When Quetzal's magic potion spills Ord's jump rope after Zak and Wheezie loose their balance, it becomes alive. Zak and Wheezie want to jump rope, but don't know how. With Emmy's help, they learn that some things are harder than they look, but with determination, anything is possible.

Cassie's baby sister, refuses to take her nap and gets very upset when Ord accidentally flattens her squishy. So the gang works together, taking care of her. It's also up to Ord to help find a new squishy for Kiki to finally get her to take her nap.

Upon entering Dragon Land, Max and Emmy encounter Shrinking Violets, which shrink them down to ant size.

Wheezie can’t wait for her turn on the new Roller Coaster Dragon, and soon loses her patience. So her friends try to help her do other things to take her mind off the ride with condiments and music.

The gang has a great time playing Pop the Bubbles, until Ord’s experiment goes wrong and he is trapped inside a humongous indestructible bubble! Ord cannot get out all by himself because the bubble's skin is too tough to pop, so his friends find a way to keep him from floating away. They must also find out a way to help Ord get out of the bubble.

Max wants to goof off when he goes to Dragon Land, but he ends up ruining the dragons' craft projects for the Dragon Scale Festival, and everyone is angry at him. He later learns that there are times to be silly and other times to be serious.

Cassie discovers a magic crayon. Everyone wants it but no one wants to share. Cassie is reluctant in sharing it, since she has planned to make a special card for her sick mother.

Quetzal's maracas are broken and the gang decides to make him a new set. Now, they must work as a team to find all the materials they need – which turns out to be a challenging new adventure all its own.

Max revisits Hoppy (from “Frog Prints”), who keeps hopping away into dark places, and Ord must brave his fear of the dark yet again to find help him.

The gang meets a dragon named Priscilla who has huge feathers and is afraid everyone will laugh at her.

Zak thinks he is doing a good thing by cleaning Wheezie's side of the room. But he soon discovers that the "junk" he threw away was actually all of Wheezie's treasures, making Wheezie get very upset. Now, the gang has to help Wheezie get them back.

When Ord loses his pet mouse, Cheddar, Emmy decides to film "The Great Dragon Mouse Mystery" with her video camera. However, she causes some hard feelings when she declines Max's help and suggests that her cast of dragons work through a lunch break.

The School-in-the-Sky has a new student named Spike, who hurts Cassie's feelings by saying unfriendly things to her and then stealing her basket of sugarplums. Quetzal later helps Cassie find a kind way to deal with the school bully.

The friends help Captain Scallywag (from “Sky Pirates”) find a Great White Cloud Whale, who swallowed his ship.

When Cassie's friends get trapped inside a huge Dragonrhinoceros, they try to tell her to do what they think to escape, but Cassie wants to try her own idea.

Max accidentally breaks the Nodlings' wagon with his bulldozer and without it, they are in trouble, making the Giant of Nod furious. When everyone's attempts to fix it fail, Max sticks it out, determined to correct his mistake.

While hunting for a Flutterby, Max scares Ord with a toy spider, but Max loves bugs and can't understand how Ord could be afraid of them.

Max is unable to swing on the monkey bars, and he wants to learn, but he just can't get any better at it, and then refuses to try again. However, when Ord gets trapped in sap, it's up to Max to swing to the rescue.