When Nerds Collide!, also known as the Jimmy Timmy Power Hour 2, is the twenty-fourth episode of Season 5, and the second Fairly OddParents/Jimmy Neutron cross over.


Needing a date for the school dance, Timmy Turner returns to Retroville, but this time he takes Cosmo and Wanda with him. There, Timmy meets Cindy Vortex, but a problem arises when he and Jimmy Neutron fight over who gets to take Cindy to the Friday the 13th Dance, and given the date, the Anti-Fairies are up to stop the earths rotation and make Friday the 13th forever. Calamatus wants to blow up the universe