Stitch has been recently very successful at capturing and repurposing the Experiments, but it's gone to his head. He thinks he's too good for everything and is being a royal pain.

But things are set to change when Pleakley goes into Jumba's ship and sees an experiment pod with the number '627' on it. Jumba has been making a new experiment. Luckily, it's in containment. That is, until they leave the ship and it escapes! Now it's employed by Gantu and Stitch wants to prove he's better than it. But he just gets beaten, and as 627 can't be turned good, Lilo and Stitch are in trouble...