Phineas and Ferb want to get the most out of their summer by making every day outrageously fun, but these two best buds aren't content with going to the beach or camping out. Whether they're building a time machine, a backyard roller coaster, or the world's largest drop of water, Danville — and the whole Tri-State Area — will never be boring again! Unless, of course, scheming big sister Candace manages to expose their antics and shut everything down, or worse, if the evil Professor Doofenshmirtz succeeds in taking over the world! To keep things rolling, Phineas and Ferb are going to need the help of their pet platypus Perry, who moonlights as a secret agent protecting the city and stopping Doofenshmirtz in his tracks. Hang out with Phineas and Ferb on the coolest summer break EVER in this colossal 300-page comics collection!