The Fairly OddParents (2001)

S6E11 Sooper Poof

Title: Super Poof Plot: Poof is struggling to master the art of shape-shifting, and he’s inherited some of Cosmo’s clumsiness! In a disastrous turn of events, he crash-lands right in front of the Turner residence, where Timmy’s parents mistakenly believe he’s an extraterrestrial super infant destined to save the world. Timmy can't simply snatch Poof back, as his parents have grown attached to the little creature. He must now concoct a clever plan to reunite Poof with Cosmo and Wanda before Dad's misguided attempts at superhero training lead to chaos!