Gobo Fraggle tries to prove himself a brave explorer when his Uncle Traveling Matt invites him to explore Outer Space.

A new Doozer construction proves to be the perfect platform for Red's new diving game. But, when she tries to force Wembley to dive, he literally freezes with fear.

Mokey has a prophetic dream that convinces her she should trust her own intuition rather than facts, which leads her into trouble as the Fraggles make their way to witness the Merggles's one-in-a-generation migration dance. Meanwhile, Cotterpin and Architect Doozer go out looking for new sources of radishes.

Boober discovers his baloobius is able to glow and tries to hide it from his friends, just as the famed Archivist comes to check out an Outer Space artifact sent by Uncle Traveling Matt. Meanwhile, Junior Gorg also makes friends with a plant.

Wembley's friends want to celebrate his birthday with different activities. His attempts to participate in all of them end up splitting him into four individual versions of himself. Meanwhile, Cotterpin makes a gooey discovery in a strange vine.

In Outer Space, Doc takes to the internet to bring attention to the ocean's plastic problem.

Gobo and Wembley discover the recently-unfrozen body of Icy Joe, a legendary Fraggle explorer whose temperament makes it hard to adjust to modern Fraggle society. Meanwhile, Junior Gorg continues work on the Gorg fountain.

The Troubadours come to the rock to celebrate New Day's Day. Boober becomes the unwilling centerpiece of the festivities, where he must give a holiday speech and release a new swarm of Flutterflies.

Inspired by the latest correspondence from Uncle Traveling Matt, the Fraggle Five decide to take a vacation at Craggle Lagoon. They discover that all the water has gone missing and Inspector Red helps the Craggles figure out what happened to it. Meanwhile, the Doozers try to find a way to use the mysterious pink goo Cotterpin discovered, and Junior Gorg looks for the perfect place to sun his plant.

Part 1 of 5. To help the Craggles fit in, Mokey Fraggle uses her supposed knowledge of Craggles to come up with a plan: the Fraggles will play all sorts of games with the Craggles. The Craggles do not enjoy Mokey's pandering, and Mokey learns that there's far more to understanding someone then meets the eye. Near the end, Pa Gorg tells Junior to drain all of the water causing Barry Blueberry to declare (and become) a cliffhanger.

Part 2 of 5. The Doozers use the pink goo in their Doozer stick recipe, but the Fraggles loathe the taste and avoid eating them. In order to construct more towers, famed and persuasion expert Jack Hammer recruits Wembley to promote them.

Part 3 of 5. With the Merggles now residing in Fraggle Rock with goo-induced hiccups, Red tries to fix all the problems that have been piling up, but injures herself in the process. Gobo, Wembley, and Boober Fraggle find a way to cure the Merggles while Mokey tries to find an outlet for Red's anxiety. Meanwhile, Cotterpin continues finding a way to get rid of the goo which has now made its way to the Gorgs (with mixed reactions).

Part 4 of 5. Boober feels insignificant amid the growing chaos of Fraggles, Craggles, and Merggles when all he's tasked with is making soup. He is soon recruited to help an ailing Marjory the Trash Heap by going into her trash pile to find a cure. Meanwhile, Junior Gorg is forced to give up his plant and Cotterpin finds a solution to the goo problem in Outer Space.

In Outer Space, Doc studies her new bacteria for potentially eating microplastics.

Part 5 of 5. Gobo has a dream that inspires him to get everybody including Junior Gorg to solve the mounting problems in Fraggle Rock.

Doc's wind power experiments create windstorms in the Rock that cause Wembley great distress. Gobo tries to reassure him that there's nothing to worry about.

Red thinks she'll be a shoo-in for the Twisty-Turny-Thon race, but the windstorms have created obstacles in her established route. Wembley lets the leftover wind gusts (or "gusties") determine his path, and he encourages Red to do the same.

Mokey takes in a plant that was uprooted by the wind. She names him Lanford and starts devoting all of her attention to him, which concerns her friends.

When strawberries distract the Fraggles from Boober's "Radish Razzle" experience, Boober uses the Repeatee Birds to spread gossip, causing a Fraggle furor over whether radishes or strawberries are better.

Wembley develops a new look using Mokey's old robe, but his reflections tell him he can only express himself in one way. Later, he and Pogey meet The Great Glitterini, a transformative creature who shows them they can express themselves however they want to.

Mezzo is performing for one night only in Fraggle Rock, and superfan Gobo is eager to clear Concert Cave for her presence. He shoos away the Doozers and a swarm of bugs, who turn out to be Mezzo and her band.

Mokey meets a Fraggle named Pryce, who comes from a distant community that operates on a "this for that" trading system. The two introduce the concept to Fraggle Rock, with mixed results.

Red becomes annoyed with the gusties, so she decides to board up the Great Hall, preventing airflow and causing extreme heat. Determined to cool everyone off without unsealing the Hall, Red discovers a colder boulder that Icy Joe keeps in her cave. Red goes off to find more colder boulders, not listening to Icy Joe's warning about respecting the ecosystem.

Boober has the most fun of any Fraggle at this year's radish celebration, but disaster strikes when Icy Joe informs everyone that there are no more radishes, not even in the Gorgs' Garden. While frenziedly looking for more radishes, Boober uncovers a tube that turns out to be a time portal to the start of the Great Radish Ball. The Fraggle Five keep jumping down the tube to relive the festivities.

Cotterpin's method of regrowing radishes will take many months to produce results, so Gobo takes charge in searching for radishes. In his leadership, Gobo takes his Uncle Matt's advice and pushes his feelings down. Misinterpreting Marjory the Trash Heap's advice, Gobo directs the others to dig underground for radishes, just as a dust storm — caused by the Gorgs raking up their garden — fills the Great Hall.

Continuing from the previous episode, the Fraggle Five (along with Cotterpin and Lanford) happen on the underground cave of the Lost Fraggles, who are led by their Leader. The Fraggles pal around with their Lost Fraggle counterparts, with the pointed exception of Mokey, and they learn the true origin of the radishes.

Mokey is posed with the challenge of having to part with Lanford when a special plant is required to help revitalize the Gorgs' Garden.

Red becomes uncharacteristically hopeful in everyone's ability to power the windmill in the Gorgs' Garden, but she completely loses hope when their first attempt doesn't work.

Meanwhile, Doc is stuck on creating a new workable design for an offshore turbine.