The Good Witch directs Candace to the Wizard in "Bustopolis" to bust her brothers, telling her to unwaveringly follow the yellow sidewalk before she floats away.
As the group travels to Bustopolis, Phineas and Ferb offer alternate fun paths to get there, but Candace refuses to leave the yellow sidewalk.
The group arrives in Bustopolis, where the Wizard (Linda) gives Baljeet "cool" sunglasses, Buford a ham sandwich, and Jeremy the realization that he was merely wearing a tree costume.
[3] In the United Kingdom, it delivered 108,000 viewers when it premiered on Disney XD on October 21, 2010, the Going Live broadcast on the same day featured a skit after the episode where the programme's presenter Nathan Simpson went into the transmission area of the studio and famously said "That episode or anything Wizard of Oz related shall not be shown AGAIN on my programme!
", this skit was repeated 10 years, 2 months and 3 days later when The 1939 Metro-Goldwyn-Mayer film version starring Judy Garland was shown.