Snapped: Killer Couples (2013)

S2E64 Rollercoaster: The Musical!

In this musical adventure, Phineas and Ferb take a trip down memory lane to relive the day they constructed an enormous roller coaster in their backyard. Meanwhile, Dr. Doofenshmirtz concocts a whimsical scheme to shift the East Coast over to the West using an oversized magnet and some clever tinfoil tricks.