Mrs. Hasagawa is watering her vegetables innocently one morning. However, she activates Experiment #613, Yaarp, which is designed to destroy buildings with it's sonic blasts. Lilo and Stitch are hot on it's trail, when it yarps, and because of Stitch's super hearing, Stitch is temporarily deaf. So, when Jumba says only someone with no ears could be safe from Yaarp, Pleakley is on the stage as an Experiment Hunter. Pleakley catches Yaarp, but Stitch's plan to deter Gantu away from the hunt goes wrong, and he captures Stitch. And now he is offering Lilo a trade: Stitch for Yaarp.

Experiment #604 - Houdini

Stitch and Pleakley are working up a terrible magic act to perform at one of Mertle's parties, so Lilo secretly helps them out by activating Experiment #303, Houdini, which can make things disappear and reappear with a blink of it's eyes. But when Gantu crashes the party, things go wrong, and Stitch is made invisible and Houdini gets away. And just to make things worse, Mertle's aunt, who is a big LA producer, wants to make Stitch a star because of his magic act, but only Lilo, Jumba, Pleakley and Houdini know it is phony.

Experiment #360 - Drowsy

Stitch uses a sleeping experiment to get Lilo to sleep. The only problem is he doesn't know how to wake her up.

Experiment 319: SPIKE

Lilo and co. set out to beat Myrtle and her family in the Ohana-Rama.

Experiment 089: SKIP

Lilo's desire to hurry and grow up is immediately satisfied when Skip, experiment 089, arrives and ages her up to a 17-year-old and then a 27-year-old. Lilo soon realizes she wants to be age 7 again because she misses out and ruins the future. She must figure out how to "reset" herself.

Experiment #262: Ace | When Jumba is in danger of losing his membership to E.G.O. (Evil Genius Organization) he has to show the leader that his experiments are still evil. But when Experiment 262 is activated and according to the experiment computer it has no evil function, things get worse.

Experiment 223: Glitch | Jumba automates the house, but an experiment gets into the computer and the house goes crazy! Can Lilo and Stitch save the day?