Timmy wishes Cosmo was a talking car so that he and his fairies can search for the missing Mama Cosma.
After watching his favorite show about hero C.C. Cruiser, Timmy wishes that he could be like him and have the fun he did. So Cosmo and Wanda grant Timmy's wish, and they go to Fairy World to solve an action-packed mystery: Where is Mama Cosma?
They arrive at Mama Cosma's place only to find the place destroyed. Timmy picks up a scrap of paper thinking it's a clue (Bridge @ 7:30). They arrive only to be chased by a trucker.
They then arrive at a Chinese restaurant called Chop R. Suey's. Timmy picks up a fortune cookie that reads: "You can lead a horse to water, but you can't make it drink". That leads Timmy to believe that Moma Cosma's at the Horse Races. They think they've found her, but it's only a centaur.
Jorgen comes and tells that Mama Cosma was just playing Bridge and that they're all (Mostly Timmy) in trouble. Then Jorgen loses his Teddy Bear and Odd Squad goes to find it. The episode ends with them all in freeze frame.