Phineas and Ferb Season 2 Episode 4 - Day of the Living Gelatin - Elementary My Dear Stacy >The family and Stacy visit London, where Stacy and Candace investigate the boys' newest scheme (a water slide from the top of Big Ben that ends on the London Eye) in the style of Sherlock Holmes. Meanwhile, Perry collaborates with a James Bond-esque British spy, Double 0-0 or 00 0, to foil Dr. Doofenshmirtz's plan to move Big Ben to Danville as an alternative to reading his tiny watch.