TV Guide Disney XD Sunday

Phineas and Ferb build a rollercoaster while their mother is shopping, while Perry the Platypus fights Dr. Doofenshmirtz's plan to throw the earth off its axis.

Phineas and Ferb enter the family car in an automobile race; Perry stops Doofenschmirtz from letting the air out of every inflatable object he encounters.

Huey, Dewey and Louie host a mystery party, where nobody is above being considered a suspect, when Scrooge suddenly goes missing at his birthday party.

Donald is forced to get in the middle of a feud between Zeus and Scrooge; Dewey and Webby look for an artifact that could teach them about Dewey's mother.

Star and her friends reenact a historic battle on Mewni Independence Day; Star's attempt to make a purchase is thwarted by her limited Earth knowledge.

Star tries to help Marco grow a beard but fails to cast the spell correctly; Star puts her classmates in harm's way during a field trip to another dimension.

Sprig must choose whether to uphold his Grubhog Day responsibilities or enjoy the carnival; Hop Pop tries to impress Sylvia Sundew with his dancing skills.

Anne introduces a teen romance film to the town of Wartwood, which divides the town; Hop Pop comes up with a plan to become the next mayor of Wartwood.

Gramma convinces Cricket and Tilly that their property contains buried treasure; Cricket doodles on Gloria's abstract paintings at the café.

Cricket sneaks into a film for adults at the Big City movie theatre; Cricket puts his house on a website for people to share their homes.

Cricket's family completes his day's commitments when he becomes ill; the Green family's nemesis tries to steal their business at the farmers' market.

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.

Tilly tries to save all moths after seeing a manipulative ad; Cricket spends the week with Bill and worries that Bill has rubbed off on him too much.

Cricket and Tilly lose sight of who they really are after they make a poor first impression; Cricket and Tilly give Wayne a tour of Big City.

Now that Team Persona's next match has been decided, they have to fight against Teams Yggdrasil and Zooganic without knowing the details of the battle.

Dr. Doofensmirthz's newest invention goes wrong and now different characters from various shows must come together to face the challenges heading their way.

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.

Mabel, exhausted with Pacifica's constant ridicule and insults, decides to challenge her to a miniature golf competition, but things get chaotic.

When Mabel makes the decision to put on a sock puppet rock opera in order to try and impress a local puppeteer, the entire production is thrown into turmoil.

When Soos realizes he will need to bring a date to his cousin's party, he attempts to overcome his shyness around girls by utilizing a dating simulator.

The gang finds itself embroiled in three tales of intrigue and mystery, including Stan being cursed by a witch and Mabel confronting claymotion.

The kids get help from Old Man McGucket to try to uncover the truth behind a secret society existing within Gravity Falls and the people that comprise it.

Blendin Blandin makes his return and sets up a futuristic battle against Dipper and Mabel that could wind up trapping them forever in the time jail.

Mabel continues to search for her true soul mate in her matchmaking attempts, but she takes things too far when she steals a love potion from a Love God.

Pacifica discovers a ghost in her family's mansion and worries that it will ruin her party, so she recruits Dipper to end the haunting.

When Dipper and Mabel's uncle is suddenly taken away by mysterious government operatives, the twins begin to wonder about his personal history.

Cornered under his Mystery Shack, after being caught in his lies, Grunkle Stan must finally reveal the secrets of his past to Dipper and Mabel.

Dipper becomes obsessed with a board game and discovers that he has common ground with someone unexpected who happens to share his interest.

Dipper and Mabel face a significant challenge as they attempt to help Grunkle Stan become the ideal candidate for mayor of Gravity Falls.

Mabel embarks on a journey to the magical land of the unicorns; Dipper uncovers some surprising information about the mysterious Bill Cipher.

Mabel and Dipper's Grunkle Stan decides to take them on car ride across Oregon, during which he intends to undermine the other tourist traps.

While Mabel starts making arrangements for her and her brother's birthday party, Dipper explores beneath Gravity Falls to discover the town's hidden truth.

Dipper is threatened by new foes and familiar adversaries when he becomes ensnared in the apocalypse and must act quickly or risk running out of time.

The Time Baby presents behind-the-scenes information about the animated series "Gravity Falls" as well as exclusive insights from the show's creator.

Mabel Pines plans a date with Gruffi Gummi that goes awry.

After Gloria spies Cricket eating dog food, he tries to prevent her from revealing his secret; Bill uses a parenting device to monitor Cricket.

Gramma worries that her family will let her down regarding a winter tradition; Gloria creates a suggestion box at the café to keep Jade in check.

When Grunkle Stan takes Dipper, Mabel and Soos to the bottomless pit to throw their unwanted belongings, a gust of wind takes them down the ditch.

Mabel and Stan make a bet to see who can run the Shack better when Mabel questions the way he is managing it; Grunkle Stan goes on a game show.

On April Fools' Day, Cricket brainstorms ways to prank his girlfriend; Bill tries to prevent Tilly from dealing with grief.

To take down the Greens, Chip Whistler tries to create an evil family to help him; the Greens move to the suburbs under new names to hide from Chip.

Scrooge's ego takes a hit when Dewey demonstrates his natural talents as golfer while the group is thrown into trouble by a mystical golf course.

Launchpad McDuck recruits Fenton Crackshell-Cabrera, the brilliant young scientist, as he beings to feel haunted by Mark Beaks' newest invention.

When Toffee takes Marco captive and demands Star's wand as ransom, she decides to join forces with Ludo and Buff Frog to take on their shared enemy together.

When Marco becomes magically locked in a closet, Star has to figure out a plan on how to open it without being able to use her new wand.

Sprig and Anne set off to figure out who stole Sprig's Blue Moon Shell; the Plantars become stuck in the town archives as they get ready for Anne's quest.

Anne promises to protect the people of Wartwood after a hard winter freeze; Sprig concocts a scheme in the hopes of winning Mrs. Croaker's affections.

Tilly and Gramma become tourists for an entire day; Cricket and Remy organize a special introductory dinner party for people to get to know one another.

Criket and Tilly's mother comes back to visit the city.

The children sneak into Bill's truck when he goes out one night with a strange duffel bag; Cricket makes an impulsive decision to purchase a large pet snake.

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.