Galileo tries to elude Maggie to give up her mossy bear by making up a story about a secret club.

Galileo stays up all night and has no energy left for a midnight search for blue roses that Eco is certain will bloom. When nightfall comes, Galileo can't sleep at all. Hegdish is restless, too – looking for the perfect scheme that would make Eco mad.

When Hegdish rescues Mud/Slinger, they wait on Hegdish night and day, much to his regret.

Hegdish strips colours from the rainbow and tosses them around to groundlings, provoking mood swings and making Eco weak.

Mud/Slinger discover a jack-in-the-box that Maggie gave them. Hegdish coaxes Maggie to take it, turning everyone's mood mad. Eco's story shows that someone's trash is another's treasure.

Eco grants Galileo the role of Sproutmaster, with responsibility for gathering the sprouts before an impending hailstorm. But the power corrupts Galileo. In an attempt to get the job done quickly, he turns bitter on the other groundlings.

Maggie's favorite tree is about to die, and Stacks predicts it will hit Eco's home when it falls. It puts two groundlings in danger: Maggie, who wants to stay with her tree until the end, and Eco, who resigns herself to stay in Hegdish's cave.

On a day that she annually gets presents at sunset, Maggie wants a secret peek at what Eco is giving.

Mud/Slinger become shallow when they charge their fellow groundlings purple pebbles for everything. Intent on getting more purple pebbles, they don't realize the river is overflowing to dangerously deep levels.

Hegdish takes his stick with him to do all the jobs Galileo find dangerous. When Mud won't go into the cave to find fertilizer, the others ask Hegdish if they borrow his stick.

Hegdish makes up a fantastic story about a fictitious monster to scare the groundlings out of their recently-harvested berries.

Stacks is overwhelmed with his new ability to roam through the marsh in a grocery cart. His mobile ways threaten to get the better of him.

Eco's grandniece, an undergroundling named Crystal, becomes Maggie's newest friend. Consequently, Galileo feels left out.

Hegdish, a mischief maker from out of Groundling Marsh's distant past, returns to a warm welcome by stealing the sunstones from an underground cave. And Eco needs those sunstones to help the garden overcome a prolonged frost.

Maggie must learn to be patient and quiet if she expects to se a butterfly for the first time. It's a tough task for Maggie, the most rambunctious of all the groundlings.

Stacks is upset when no one gives him credit for an idea of his. Thus, when a huge pollutant stinks up the marsh, Stacks is not willing to give his fellow groundlings the solution.

Hegdish provokes Galileo to pull a prank involving itching powder. In the process, a patch of grass begins scratching uncontrollably.

Hegdish builds a fence around the sparkle berry bushes he thinks are his alone. He then coaxes the other groundlings to build fences around their lairs. This leads to a potentially serious flood.

Galileo wants to play music for the upcoming blossom festival.

Mud/Slinger bicker between themselves to such an extent that neither wants to see the other. This prompts Eco to mix a special concoction that, should Myd/Slinger drink it, they would separate forever.

Hegdish coaxes the groundlings to steal the secret recipe for a special candy. What they make together is a strange mix that switches Maggie and Mud's personalities.

Maggie thinks she has ruined a festive day when Hegdish tricks her into shaking the Tinkertree barren of its bells. Eco tells Maggie that Nature's rhythms are dependable.

Mud/Slinger want to demonstrate their bravery. When Maggie and Galileo ask them to get special moss found on a remote island, Mud/Slinger jump at the opportunity. Eco helps get them prepared with everything they need, which will come in handy. Mud/Slinger's traditional bickering gets them lost at sea. All that Maggie, Galileo, and Eco assume, though, is that Mud/Slinger will be their heroes.

When Galileo discovers a duck egg, he decides to perch on it in hopes that a duck will hatch. It takes all the persistence Galileo can muster to stay on the nest, and Hegdish is waiting patiently himself – for the one moment that Galileo will falter.

Eco becomes overly concerned about the safety of the other groundlings, much to Maggie's discontent. When a tree needs help, Maggie is determined to do the job by herself. It's tough for Eco, especially since she had promised not to give Maggie any advice about the tree.

Wintertime hits the marsh, much to the alarm of Mud/Slinger, who usually hibernate at this time. As they stuff their faces for the upcoming sleep, Hegdish succeeds in trapping Eco in Mud/Slinger's cave, but doesn't count on trapping himself in with her. Eco tries to instill to Hegdish the ability to talk to Nature and the Earth's creatures.

Mud/Slinger try to earn fame by making cookies out of fungus, but they don't leave any fungus at Mossy Meadow for the swarming crunchybugs.

In need of a friend, Galileo decides he wants a pet. He thinks he has one when a featherbeam bird enters his life.

Galileo decides he needs to explore outside the marsh. He builds a boat, ready to take off for some adventure, but the adventure comes to him. A plant from a frozen climate floats by, and Galileo decides he will return it to its rightful place in the mountains. Eco tries to remind Galileo about Nature's way through a story about an unruly tribal leader.

Maggie decides to trick as many groundlings as she can, but some trust is lost, which proves costly.

Maggie craves attention. She declares to all that she will look for a flower known only in stories.

Mud/Slinger comes down with a rare disorder and can't speak coherently. Hope for a cure may be thwarted unless Galileo and Maggie learn to cooperate.

Stacks is ashamed when confronted with the fact that he is a machine. Eco eases things by telling all the ground-lings how Stacks came to be.

How can the Groundlings find relief from the oppressive heat? Mud/Slinger try out a myriad of inventions, none of which work--until they hit upon a fancy fan. But it takes an isolated thunderstorm to remind Mud/Slinger that they don't need certain tools all the time.

After Eco accidentally breaks the Pot of Plenty prior to the annual harvest meal of gratitude, she and Galileo follow the legend of their grandcestors in an effort to create a replacement pot.

Eco is intent on spending time by herself while all the other groundlings seek attention.

Galileo chases Maggie out of the marsh on the grounds that she doesn't serve any useful purpose. But an invasion of fast-rising flowers threatens to drown out the marsh and everyone in it, and Maggie is the only groundling to evade a floral disaster.

Mud/Slinger's new invention to protect the groundlings from the drowsy effects of doy daisies leads to a potential explosion.

Stacks feels left out because all the groundlings have been ignoring him. All that changes when Stacks suffers from amnesia, thinking he's a tree.