"Journey to the Center of Candace" is the second half of the eleventh episode of Phineas and Ferb. Isabella's dog, Pinky, eats her Fireside Girls sash, so the boys build a mini-submarine to retrieve it, but they end up inside Candace instead. Perry is forced to take direct action when Dr. Doofenshmirtz's latest scheme specifically threatens Phineas and Ferb.