Timmy Turner (Tara Strong) and Jimmy Neutron's (Debi Derryberry's) worlds clash once again. Hilarity ensues.

Timmy Turner (Tara Strong) can't find a date to Dimmsdale's Elementry School Friday the 13th Dance. So he then remembers Cindy (from The Jimmy Timmy Power Hour (2004)) and then goes to Retroville, but takes Cosmo (Daran Norris) and Wanda (Susanne Blakeslee) with him. But Jimmy Neutron (Debi Derryberry) was planning on asking Cindy Vortex (Carolyn Lawrence) to the Linnberg Elementry School Dance. Jimmy and Timmy then preform magic versus science which then attracts Professor Calamitous (Tim Curry) Jimmy Neutron's archenemy. But the Anti-Fairies then escape from their prison and Anti-Cosmo (Daran Norris) meets Calamitous and betrays him later. Can Jimmy and Timmy save them?—Hamburger Guy 54

Timmy Turner (Tara Strong) and Jimmy Neutron (Debi Derryberry) are preparing for their upcoming Friday the 13th school dances. Remembering his time with Cindy Vortex (Carolyn Lawrence) from Retroville, Timmy decides to pick her up and take her to Dimmsdale, creating another rivalry between Jimmy and Timmy, of which Professor Calamitous (Tim Curry) thinks he can take advantage. However, not even Neutron's archnemesis is safe when Anti-Cosmo (Daran Norris) breaks Anti-Wanda (Susanne Blakeslee) and all of the other Anti-Fairies out of Fairy World Prison to bring a lot of bad luck to Timmy's universe, that Friday the 13th could remain on the calendar forever.—Daniel Timothy Dey