 After Keely fails to take care of a plant for their science project, Phil uses a device called the New-ager to regrow a new plant. Keely is intrigued by the device and borrows it to surprise Phil at school. She makes herself 25 and does indeed fool him. But before she can be changed back to 14, Vice Principal Hackett sees her and asks her to substitute for his class while he pulls himself together after pining after his ex-girlfriend, Veronica. Keely - aka Ms. Vanderhoosy - has fun teaching a class, then bows out when Mr. Hackett returns. Hackett is smitten by Ms. Vanderhoosy, and asks her out for coffee after school. To quell Hackett s advances, Phil and Keely decide to have a 25-year-old Phil come by the café and play her boyfriend. Phil gets jostled as he s setting the New-ager, and instead makes himself 75 years old. Before he notices, he introduces himself to Hackett as Ms. Vanderhoosy s boyfriend. Hackett becomes depressed that a hottie like Vanderhoosy has a boyfriend that s 75. But Phil convinces Hackett that if there are babes for 75-year-olds, there must be someone for him. This restores his confidence, and he gets back together with Veronica.