Stitch! - Season 2

When Hämsterviel escapes from prison, he gets a small flying insect to turn Stitch's good deed counter the opposite. Whenever he does a good deed his points go down on his good deed counter and when he does bad things his good deed counter goes up. When Kijumunaa gets really sick, Stitch decides to get rid of his good deed counter and save him along with Yuna. Jumba tries to figure out what's wrong with the good deed counter and Pleakley finds the bug that reversed the good deed counter. Hämsterviel sends Gantu to try to take the Spiritual Stone.

Pleakley's parents bring Mr. Stenchy to the island when they come to visit. The little pink experiment causes a really bad aroma on the island and Stitch gets jealous of his cuteness once again.

On Halloween, Yuna and Stitch meet the son of the famous vampire Dracula, Count Dracula Junior, who goes around Izayoi eating everyone's trick-or-treating candy.

A new girl named Sasha, who is a fashion model, comes into town, causing a rivalry between Yuna and Penny to see who's a better fashion model.

Yuna tells Stitch the story of Captain Khan, so Stitch decides to find the pirate and his ship. However. Yuna, Stitch, and Kijimunaa run into a group of young pirates who are looking for the ship as well, so Stitch decides to tag along with them.

Reuben brings Checkers to Izayoi, and the latter experiment turns Penny into the queen of the island. However, she soon grows tired of controlling everyone and wants Checkers to get off her head, but he refuses to do so. Stitch, who is unaffected by Checkers' powers but gets turned into a living pineapple thanks to a brainwashed Jumba, seeks Reuben's help to remove Checkers from Penny's head and stop her reign, using an incredibly spicy sandwich to get him to come off Penny's head on his own.

Hämsterviel re-corrupts some experiments using a recording of Angel's siren song and causes them to do chaos again, disrupting a class project at Yuna's school to build a playground for an upcoming festival. Link binds Yuna and Penny together, and Babyfier transforms everybody else (apart from Stitch) into tiny babies. While Stitch takes care of the babies, Yuna and Penny must try and co-operate together to find the antidote to get everyone back to normal.

Yuna gets a keychain from Sasha, but it begins to fall apart, so she tries to hide it from the latter. Shortly afterward, a chicken shows up with a clothespin that was blown of Officer Suzuki's clothes line, which Stitch, Jumba, and Pleakley mistake for being the keychain and chase after it. Hämsterviel notices this from his lab and believes that the clothespin is a key to unlocking the Spiritual Stone, so he decides to go after it by riding a robotic Pteranodon to the island to retrieve it.

It's Christmas time, and when Gantu accidentally sends Experiment 267 (Wishy-Washy) instead of Experiment 297 (Shortstuff), Stitch decides to use Wishy-Washy's ability to grant people's wishes to raise up his good deed counter. However, Yuna wants to get something for Gramma, but she tells her she doesn't need to get her anything. When Penny kicks Ted out of her entourage, he wishes he could ruin Penny's Christmas party and Wishy-Washy accidentally turns her Christmas tree into a monster, and with no more wishes left, Stitch and the others must save Penny.

Stitch and Taro accidentally disturb a yokai and switch bodies.

Dads Day celebrations are coming up at school, but Yuna believes that her father, who is still away and busy with his research on sea slugs, will not show up. Stitch arranges to have Yuna's father arrive on the island and meets him on his ship. Meanwhile, Hämsterviel decides to use a climate-changing machine under the water near the island to cause a powerful storm so that he and Gantu can steal the Spiritual Stone unopposed. Discovering Hämsterviel's machine, Yuna's father and Stitch take a submarine to destroy the machine and save the ocean. In the end, Yuna finally reunites with her father, just in time for Dads Day.

Because her mother died when she was a baby, Yuna does not remember her face. On a certain night, Stitch finds out, and Experiment 276 (Remmy) entered Yuna's dreams and turns it into a nightmare. Stitch, Jumba, and Pleakley rush after 276 to get Remmy out and save Yuna. Ultimately, Remmy is captured and he allows Yuna to see her mother's face.

Experiment 303, Amnesio, comes to the island and starts taking peoples' memories.

Stitch accidentally upsets Angel when he trips and drops a Valentine's Day cake on her. Desperate, Stitch uses Hunkahunka to have her fall in love with him unconditionally. His plan works, but things soon get out of hand, as Hunkahunka starts randomly tapping people.

Posing as a human duke, Experiment 627 tries to take Angel away from Stitch. This is all the doing of Dr. Hämsterviel. However, when Stitch and Angel are almost crushed by Hämsterviel's ship, 627 saves them.

A gallery is opened at the hotel Penny's father manages, but a masterpiece is stolen. Stitch imitates a TV detective to find it.

Yuna's father returns to the island, but he isn't acting himself. Stitch finds out it's a tanuki pretending to be him and tries to show Yuna the truth.

"A Little Hämster Love": One of Hämsterviel's schemes unintentionally ends up making him out to be a hero to the islanders./"Pleakley Loves Hollywood": An alien director comes to the island and decides to make Pleakley a movie star.

Hämsterviel uses Swirly to try to get Stitch to use his wish to make Hämsterviel the ruler of the universe.

Yuna's mean, bullying cousin Tigerlily (Zuruko) arrives on the island and moves in with her, Stitch, and Gramma. She uses her beauty and fakes kindness to manipulate others. Meanwhile, Hämsterviel plans to use Welco's bubble powers to send Stitch out into the ocean and drown him.

When Nosy appears on the island, Yuna attempts to use him to reveal her cousin's cruel nature (as no one believes her). But despite her best efforts, everything keeps turning in her cousin's favor.

Hämsterviel kicks out five of the weaker experiments and they find their way to Earth. However, Hämsterviel needs them back when it is discovered they stole a treasure chest containing a big secret of the tiny genius.

Jumba, Stitch, and Tigerlily are shrunk by Jumba's first experiment, Shrink. The latter two decide to play some pranks around the island, while Hämsterviel and Gantu go after the shrunken Stitch to crush him.

Bonnie and Clyde show up and cause trouble, so Stitch makes himself into a superhero character he calls "Stitchman" to stop them.

Stitch and Yuna are sucked into an alternate universe by Experiment 272/Wormhole and meet a bad Stitch with a jetpack who enjoys destroying an abandoned city, along with alternate versions of Jumba, Pleakley, and Gantu. As Yuna tries to convince the alternate universe's 626 that ʻohana is better than destroying things, the Jumba of Yuna and Stitch's universe tells them via her good deed tracker communicator that they only have a limited time to find the interdimensional portal back home or they'll be stuck in the alternate universe. However, only Wormhole knows where the portal is and he refuses to leave until he finds a slipper belonging to Jumba that he lost to a previous portal before, which he believes to be in this alternate universe.

Stitch and his friends are going to Tokyo Disneyland, with Yuna's father, Jumba, Pleakley, and Penny.

After finding out that Tigerlily is afraid of lightning, Stitch and Yuna chase a cloud to try and capture Raijin's son, also named Raijin, from it, but he's small and not very scary. Stitch tries to scare Yuna's cousin again but fails, and so does the yokai, so Jumba creates an electric energy drink using Sparky's electricity, which Stitch uses to temporarily gain electricity powers.

All the people are scared of pollution in the sea, so Stitch has to defeat Ploot in order to save it.

Stitch is hired by the Grand Councilwoman to save the universe from a mean experiment known as Experiment Zero.