Phineas and Ferb (20072015) Phineas and Ferb's backyard is the neighborhood hotspot for all of their cool inventions. Meanwhile, their elder sister Candace is obsessed with busting her brothers for all the inventions to her mom once and for all. Simultaneously, their secret-agent pet platypus fouls the "evil" schemes and plans of Dr. Heinz Doofenshmirtz.