Oops! Lulu's science fair invention locks the pals inside the Treepod; Friends try everything to cure Sunny's cold so she can play in the big game.
The whole town thinks Yikes is a genius after Lulu switches tests with him; Yikes and Mike Mine face a big challenge on Palentine's Day.
Lulu's robot goes haywire and tries to "help" everyone in town; Sunny tricks her friends into thinking a scary beast is headed for Popplopolis.
With their clubhouse at stake, the pals hunt for a lost treasure; Bubbles finds a way to be in two places at once, but her double makes trouble.
Mike Mine tries to turn two pals against each other in the race for class president; Bubbles realizes a "BFF" app can't replace her friends.
Mrs. Snooply's plan to punish the pals for their wild antics backfires; Sunny tries to travel back in time to get her hands on a hot new video game.
Izzy sets out to find a famous pirate treasure, only to discover it's cursed; The pals enter a quiz contest to make up for embarrassing Miss Shush.
Miss Shush tries to stop the pals' rowdy behavior with a book of outdated laws; Sunny faces a dilemma when a clumsy Bubbles joins the poppleball team.
A bored Izzy convinces the pals to fly to space, but their adventure takes a spooky turn; Izzy's field trip into secret tunnels doesn't go as planned.
As the pals prepare for the big Cupid dance, Bubbles tries to play matchmaker; Lulu invents a new drink that takes the town by storm.
The pals help a frantic Lulu prepare to give a speech at the Inventors' Society; When the mayor loses his memory, Bubbles steps in to run the city.
A flying robot suit turns Sunny into a superhero, but the power soon goes to her head; Sharing a pod puts Bubbles and Sunny's friendship to the test.
When Bubbles can't get her pals to join in a singalong, she resorts to sneaky tactics; Lulu's new invention leaves the Popples acting like zombies.
The pals find a creative way to teach Izzy a new dance; Lulu programs Help-R to help her friends with their work, but the robot has bigger plans.
Bubbles learns the hard way that her idol is a selfish diva; Mrs. Snooply moves into the treehouse for a few days and makes some big changes.
When Sunny directs a TV talk show, she decides to air some embarrassing moments caught on camera; Bubbles' and Gruffman's tails get tangled.
Feeling misunderstood, pack rat Izzy runs away with a garden gnome who loves collecting treasures too; Sunny puts on a magic show with her pals' help.
The pals accept a dare to spend a night in Popple Park, which is supposedly haunted; Lulu invents robots to help the overworked mall security guards.
Mike Mine tries to cheat Pop Race champion Sunny out of another win; The Popple pals test rides for the Popland grand reopening.
Bubbles and her friends turn out to watch the Popple moon turn pink; Izzy, Yikes and the Popplar twins crash the girls' "no boys allowed" sleepover.
Bubbles agrees to baby-sit for five baby Popples; Lulu's new invention, the Popplestopper, gets everyone stuck in pause mode.
Bubbles is making popcakes for the whole town, but her friends think they taste awful; Sunny panics when she loses her good-luck scrunchie.
The Popplar twins' prank turns Polly into a Sunny look-alike; The Popple pals rescue Lulu from a video game.
Lulu's invention to help her stay balanced during a fashion show gets out of control; Mike Mine asks Izzy to help him find a buried treasure.
Izzy and Mike Mine get stranded over Popplopolis on an airborne balloon bench; Izzy asks for Yikes's help to finish an art project for school.
Lulu and her friends must save the town from a rapidly growing Popple-eating plant; Mike Mine blames Yikes for destroying Lulu's new invention.