After getting in trouble for melting his father's trophy with heat vision, Timmy wishes for a time-travelling scooter so he can stop Dad from ever winning it. Unfortunately, Timmy's actions have changed the course of history when he returns to the present: Dad rules all of Dimmsdale, and Cosmo and Wanda never met Timmy. Now, Timmy must return to the past to correct the damage he did to the timeline. / While celebrating the wedding anniversary of both his parents and godparents, Timmy is forced to travel to Fairy World when Cosmo leaves Wanda due to a misunderstanding.