Tired of childhood restrictions, Lilo uses an experiment that skips time ahead ten years in the future to turn herself into a teenager and then into an adult. However, while she and Stitch disappear for twenty years, Dr. Hämsterviel captures the experiments and takes over the world.
- Moral: Don't be in a hurry to grow up.
- Teenage Mertle is voiced by Grey DeLisle, who previously provided the voice of Baby Nani in "Babyfier".
- Adult Lilo is voiced by Tara Strong, who previously provided the voice of Angel.
- Nani meets Hämsterviel for the first time after 20 years, albeit in an unfavorable position.
- The uniform that Gantu was wearing in the alternate future was the same one he wore in the episode "627".