Jumba and Pleakley come to Earth to get Stitch, who flees with Ai to an old shrine with a strange sage there. The sage helps Stitch and Ai flee from the aliens and sidetracks Jumba with ancient scrolls that detail monsters, which peaks the scientist's "mad genius" curiosity, leading him to create a qilin. Shortly after Stitch and Ai return home, the Jaboodies' drones arrive to capture Stitch, but he's saved by Jumba's qilin, who destroys the drones. However, Jumba then finally captures Stitch afterward, which upsets Ai to the point of having a breakdown. After Jiejie passionately argues for Jumba and Pleakley to let Ai keep Stitch, the alien partners free him and explain to the Grand Councilwoman via video chat what happened. She permits Jumba and Pleakley to let Stitch live with Ai, under the condition that they are responsible for safeguarding him.

Jumba creates a dragon, which disobeys him. He then realizes the dragon needs a mate or it will turn bad for 100 years. He succeeds in making a mate for the dragon, who then produce an egg. After Stitch, Ai, Jumba, and Pleakley spend the night with the dragons, Stitch finds himself targeted by the Woolagongs, who inadvertently threaten the dragon egg. Stitch, Ai, and the dragons fight the Woolagongs to protect the egg before it hatches.

Ai explains in the cold open that Stitch was protected by "special qi energy" during his re-entry into Earth's atmosphere in the first episode; the same energy was also responsible for him losing much of his memories of his life before Ai, including Lilo. He knew that he had to find a secret shrine but does not know where it was or why he had to find it. In the episode proper, Ai takes Stitch to a bridge where several locks are. Friends write their names on the locks and lock them on the bridge as a symbol of their unbreakable friendship. Unfortunately, Stitch does not agree with where to place the lock, resulting in them fighting over it and dropping the lock below the bridge. They then get attacked by both Woolagongs and Jaboodies going after Stitch once again, and Pleakley ends up getting caught up in the fight when he tries to rescue the duo. Jumba sends out his latest experiment, a xiezhi, to save Stitch, Ai, and Pleakley. After the two alien factions are defeated again, Stitch finds the lock, and he and Ai finally agree on a spot to lock it.