Experiment 285 causes Stitch to become lazy and unwilling to work, so Lilo won't have his help while trying to put a stop to one of Hamsterviel's evil plans.
When Candace experience bad luck, a native Hawaiian tells her how to fix it, but it will be no easy task to climb to the top of the volcano she must conquer.
Candace is split into two personalities: one who wants to bust the boys and the other who wants to be with Jeremy; Phineas, Ferb and their friends get sick.
Candace switches places for a day with a princess that shares her likeness, but Phineas and Ferb's continued hijinks prevent her from enjoying the spoils.
Cricket invites some local news teams to witness the growth of Bill's large watermelon; Cricket confronts a group of cyberbullies known as the Cyber Knights.
Gloria forces the Greens to play a part in her mounting series of lies about her success to her parents; Cricket is determined to find Big City's best pool.
Tilly accepts an opportunity to test new technology at BigTech; Cricket is forced to choose whether he should bring Tilly or Remy with him to attend a show.
Young Bill is determined to ensure the family farm remains in business; Tilly and Nancy try to sit next to an important person at Saxon's birthday party.
Bill and Chip Whistler strike up a friendship as the Green family attends Farm Con; Cricket becomes $100 richer and is convinced to use it for an investment.
Remy's unpreparedness for an upcoming violin recital jeopardizes his future life plan; Gramma comes to realize that thieves are her best rideshare customers.
Bill grows suspicious about how Cricket is going to afford a family dinner; Tilly and Cricket try to find out of Bill actually likes their Father's Day gifts.
Gramma shares a story about her greatest adventure after she finds a box of mementos; the animals vie over control of the farm while the Greens are away.
Remy and Cricket decide to start up a heated game of "H-O-R-S-E" on the hottest day of the year; Cricket is on the verge of enduring a brutal punishment.
Chip Whistler comes back for vengeance against Cricket and the Greens; Tilly and Andromeda assume they are invited when Gloria reveals plans for a night out.
Kiff and Barry show Kristophe a good time by taking him to the aquarium; when she can't find her friends, Kiff worries that she's starting to become annoying.
When Anna and Elsa realize that they don't have their own family rituals, Olaf goes an adventure throughout the kingdom to bring home the best traditions.
Phineas and Ferb plan to turn the city of Danville into a beautiful, flickering thank you card to Santa Claus; Doofenshmirtz creates the "Naughty-inator."
When the boys sell their idea for a toy replica of Perry, not everyone is happy; Candace is forced to dress up as Perry at the toy store where she works.
The boys decide to organize a traditional family Christmas special; Phineas and Ferb use a snow-cone machine to make a mystifying mix of winter and summer.
Molly creates a winter wonderland for seniors, and Scratch hopes to find the perfect gift for Molly; Molly's has a bad day, so she asks Scratch for a time-loop.
The Pines family seeks a return to a normal life following the Li'l Gideon incident by hosting a "Mystery Shack is Back" party but receive unwelcome guests.
Dipper finds secret pages in his journal that lead him and the gang to find the author of the entries, taking them to a hidden bunker and a figure of lore.
Phineas, Ferb and Candace go skating with their grandmother, who used to belong to a championship roller derby team; Dr. Doofenshmirtz builds an evil invention.
The children try to retrieve Nancy's trailer after her old biker gang steals it; the Green family threatens Cricket's success with house-sitting for Remy.
Cricket is determined to avoid going to the dentist and Bill struggles to complete a puzzle; Tilly and Andromeda plan to stay up all night during a sleepover.
Billy and Nancy get ready for a special harvest dinner; Tilly aspires to win a trophy at the local community center and trains with the center's director.