Phineas and Ferb: Cheers for Fears/Just Our Luck

When Phineas and Ferb discover a commemorative coin from the 1903 Danville World's Fair, they're immediately taken back to the festival where steam-driven devices were introduced and a set of kids, who were very much like them, were preparing for the highly anticipated event./ Isabella plans an impromptu picnic for Phineas when the rest of the gang have plans of their own. Meanwhile, Doofenshmirtz uses a Teleport-inator to send his daughter to a movie marathon.