Foster's Home for Imaginary Friends (2004)

Episode Overview

Frustrated by a lack of appreciation, Frankie stumbles upon a toy box left at the door of Foster's. Though instructed to take it to the attic and ignore it, her curiosity leads her to open it, unleashing an imaginary friend and pulling her into a whimsical world. There, she is treated like royalty by a peculiar imaginary companion. Meanwhile, Bloo, Mac, Wilt, Eduardo, and Coco realize Frankie is missing and embark on a mission to rescue her from this surreal realm. This episode is notable for being the only one rated TV-PG.