Capt. Deemo and first mate Gil pilot their steampunk sub to different ocean habitats so they can deliver Friendship Day bubblegrams to all their friends; along the way, they find themselves being chased by a kraken.
Zooli and her crew of marine biologists escort their new friends Baby Shark and his pilot fish, William, to visit Baby Shark's great-great-great-great-great Uncle Slow Mo and help them escape the determined fisherman who's chasing them.
When primatologists Zooli and Gil are looking in the rainforest for a silverback gorilla, they're chased into an ancient temple by a robotic silverback that turns out to be a tiny marmoset guarding a sanctuary of mountain gorillas.
In the Gourmet Galaxy, everyone loves yummy food, but when Gen. Yuck turns everything icky, only a recipe for delicious moon muffins can stop her; master chef Goby and his apprentice, Deema, must bake those muffins and save the galaxy.
When supervillain Felina Meow starts turning all the dogs at the annual dog show into cats, it's up to superheroes Puppy Girl and Super Pup to stop her.
Excited that Zooli is getting a new pet, the Guppies try to guess what kind of animal it is; Zooli loves many creatures, so her new pet could be anything in the animal kingdom.
Everyone in the Old West town of Harmony Valley loves playing music together; when noisy Billy Joe Strumlouder rides into town to sabotage their tunes, Sheriff Zooli must save the day.
Secret Agent Nonny is on a mission to deliver mysterious messages to all of his agent friends, which are actually invitations to his own surprise birthday party.
Goby and Gil go on a quest to get a geode at the top of a volcano, then try to make it back to the Rocky Valley Rock Show in time to enter the contest for best rock.
Gil wants to be a ninja, but his ninja teacher just keeps giving him random tasks to do; frustrated, Gil is about to give up when another ninja challenges him, and he realizes he's been learning ninja skills all along.
Mail carrier Molly tries to deliver a Friendship Day card for someone named Alison in a place called Wonderland; the card-stealing Queen of Hearts bans Friendship Day across the land.
Ice cream sellers Molly and Gil are trying to deliver ice cream to a water park on the other side of a hot desert before it melts and without getting caught by the Rattlers.
Molly helps a princess-in-training with her manners, and together they become princesses in the hallowed Glitter Games.
Molly and Gil get the opportunity to see how bubblecakes are made when they step into Chef Stef's kitchen.
When Farmer Joe's baby lamb wanders off the farm during a storm, Bubble Puppy becomes a sheepdog to save the day.
Molly is going to have a new sibling; the Guppies get excited about babies; the children go to the hospital to meet a new baby.
Gil and his friends attend a basketball game played by elephants.
The children try to teach Mr. Grumpfish about their favorite things when he is their substitute teacher.
The Guppies must use their nautical knowledge to save their party at sea when a giant ball of snow cone ice threatens to sink the party ship.
The Guppies perform a "soap opera" to teach Mr. Grouper about good hygiene.
When Molly and Gil find a lost kitten named Bubble Kitty, they help take the cat home to Meownt Rushmore.
The Guppies learn about the zoo while trying to find a friend for a lonely rhinoceros.
Deema has a loose tooth; the Guppies learn about keeping a healthy smile.
Nonny is on a quest to become a real knight.
Oona's friend must visit a doctor when he breaks a bone in his tail.
The Bubble Guppies learn about colors while car racing.
When an actor cannot perform at a play, Deema must take the stage.
The Bubble Guppies learn about trees.
The Bubble Guppies learn about farm animals.
The Bubble Guppies go sightseeing in the big city.
The Bubble Guppies learn about dinosaurs.