Ep. 12: Pleakley's Tetra-Tab leads Stitch and Ai to create destructive brothers Yong and Scratch.
In the first half of the two-part series finale, Pleakley obtains a multi-functional alien gadget known as the "Tetra-Tab". Ai and Stitch utilize this device to generate artificial siblings named "Yong" and "Scratch". Initially, the group coexists peacefully until Scratch influences Stitch to cause chaos. Stitch destroys a model city and subsequently a construction site, an event discovered by Ai, Jumba, and Pleakley via local news broadcasts. Following the second destruction, Scratch guides Stitch to another construction zone, persuading him to continue his rampage. This escalation triggers Stitch's metamorphosis program, transforming him into a giant monstrosity. As the colossal Stitch approaches the city, Ai and Yong arrive on Jumba's hovercraft to witness the unfolding disaster.
Episodes
- Ep. 8 · Ai and classmates create videos for Tell the World while Stitch and Ai trick a nian
- Ep. 9 · Ai and companions pursue a growing fenghuang while bounty hunters Noo-bing and Zi attempt to capture it.
- Ep. 10 · Woolagong agent targets Stitch but zaps Ai, summoning imaginary friend Cheng Fei and transporting her to the Valley of Dreams.
- Ep. 11 · Stitch disrupts the town's nuo opera performance with mass-produced mythical creatures
- Ep. 12 · Pleakley's Tetra-Tab leads Stitch and Ai to create destructive brothers Yong and Scratch.
- Ep. 13 · Stitch discovers his true nature as a Jaboodie weapon while protecting Ai from Commander Wombat's forces.