Candace tries to bust Phineas and Ferb when they put on an enormous backyard magic show, while Vanessa and Major Monogram's son Monty get coffee together despite their warring fathers. Meanwhile, Dr. Doofenshmirtz tries to become hip in an attempt to get youthful followers. / The guys help their dad unearth a missing piece of Danville history; Doofenshmirtz tries to make himself younger to win a children's film festival.