Taking the phrase "school of fish" as literally as possible. Fish-tailed preschoolers attend school in a vibrant aquarium-inspired underwater classroom where they learn about science, maths, and literacy through original music.
The Sea Witch steals the Guppies' magical jewels, so she can rule the Seven Seas! Will the Guppies get their jewels back, and stop her before it's too late? (S5, ep 1)
It's Secret Agent Nonny's birthday, and he's on a mission to deliver mysterious messages to all of his agent friends. Turns out, they're invitations to his own party! (S5, ep 3)
Dirty Deema has stolen Molly and Gil's soap, and made The Kingdom of Clean very dirty! Molly and Gil have to get their soap back, and clean up the kingdom! (S5, ep 2)
When Mr. Grumpfish turns up in Happy Junction, he makes everyone in town grumpy! Will Sheriff Molly find a way to help everyone handle their emotions? (S5, ep 4)
Windy Pete is sailing around the world, blasting tropical climates with snow! Will the Ocean Patrol stop his snowy assault? (S5, ep 5)
Goby and Gil go on a quest to get a geode at the top of a volcano! Will they make it back to the Rocky Valley Rock Show in time to enter the contest for best rock? (S5, ep 6)
When Nonny, Gil and Zooli conjure a genie, she agrees to grant whoever brings her the most precious gift a wish. They think it might be a precious gem, but it's better! (S5, ep 9)
Hansel and Gretel have to get Bubble Puppy and Bubble Kitty home safe to the Furry Godmother, but they're being stalked by a witch along the way! (S5, ep 7)
When supervillain Ms. Goo Goo starts changing everyone into babies, it's up to Guppy Girl and Bubble Boy to stop her before they get turned into babies too! (S5, ep 13)
When Agnes the Dragon moves to the Kingdom of Roses, everyone is afraid of her! Except Zooli, who befriends Agnes and shows her friends how lovable Agnes really is! (S5, ep 8)
Gil wants to be a ninja! But his teacher just keeps giving him random tasks. Gil is about to give up, until a challenge shows he's been learning ninja skills all along! (S5, ep 12)
When someone's stealing sleeping bags from campers, Gil is convinced a yeti is to blame! Will the Snow Squad catch the culprit? (S5, ep 11)
If the Moon People can find a way to make it dark during the day, the Sun People agree to turn off their night light so the Moon People can enjoy their movie. (S5, ep 10)
On Christmas Eve, Molly, Gil, and Bubble Puppy discover Santa's lost list in the snow. Can they return it safely to the North Pole, and avoid the Humbug? (S5, ep 15)
When some Untidy Titans (played by Guppies) start messing up Zooli, Nonny, and Oona's goat farm, the goat herders journey to the cloud to ask them to tidy up. (S5, ep 14)
Molly is trying to deliver a Friendship Day card for someone named Alison in a place called Wonderland. She'll have to get past the card-stealing Queen of Hearts! (S5, ep 18)
When showman Gil's "real live dragon" gets loose in Bubbleville, it's up to Pet Finders Oona and Zooli to track the lizard down and return it to its home on Komodo Island. (S5, ep 16)
City-slicker umbrella sellers Molly and Gil set up shop in the Amazon rainforest, but howler monkeys take all their merchandise! (S5, ep 17)
It's Lighthouse Keeper Deema's birthday! But when a monster named Fogzilla keeps blowing out her lighthouse, she needs to figure out how to get Captain Molly's ship to shore. (S5, ep 20)
On the hottest day of the year, it's Park Rangers Goby and Gil's job to make sure that pedestrians can make it to the lake to swim. Bigfoot swipes the park's stop signs. (S5, ep 21)
On the U.S.S. Recycler, Captain Deema and her crew strive to leave every planet cleaner than they found it. Their mission is tested when their ship is taken over. (S5, ep 22)
When small-town puppy-saurus Bubble Puppy gets picked to go against Boom Boom T. Rex in the Tough Roarier competition, it's a battle of strength, speed, and heart. (S5, ep 26)
Police Officers Molly and Gil are tracking some mysterious lights that have been popping up around town. Could they be aliens? (Spoiler alert... they're not.) (S5, ep 23)
Molly and Gil are trying to deliver ice cream to a waterpark on the other side of a hot desert. Will they get there before a rattlesnake biker gang catch them? (S5, ep 24)
Skipper Molly and First Mate Gil are shipwrecked on Volcano Island, and it's about to erupt! But then parts of their boat start to mysteriously disappear! (S5, ep 25)
When Chefs Molly and Gil bring their tasty food truck to Bland Land, they discover that the Baron von Bland only lets his subjects eat Bland Bread. (S5, ep 19)