Yuna, Taro and Stitch enter a singing competition, but Stitch realizes he can't sing. Taro really wants to win so he can get a trip to the hot springs for his dad, so Pleakley gives him lessons.

Jumba gets Stitch to be his new lab assistant, but when Stitch doesn't help properly, he quits and runs into town. Jumba notices some mysterious things going on in town and meets a yokai named Topsy-Turvy who turns things around.