Hearing that Jeremy would appear in a television commercial (which only ends up having him as a foot model), Candace decides to participate in a game show being produced by Phineas and Ferb and the Fireside Girls so she can be as famous as him. Meanwhile, Doofenshmirtz plots to erase all infomercials in the Tri-State Area.
Phineas and Ferb help Isabella and the Fireside Girls meet their fundraising goals by building the world's most elaborate automatic car wash; Doofenshmirtz tries to literally make mountains out of molehills.