Stepbrothers Phineas and Ferb spend each day of their summer vacation finding something inventive -- and often risky -- to do, while trying to avoid getting busted by sister Candace. Meanwhile, their pet platypus, Perry, leads a secret life as a spy. watch
Phineas and Ferb's adventures this season include constructing the world's tallest building, attending a sci-fi and fantasy convention, searching for the "Lake Nose Monster" and accidentally dosing Candace with a growth potion. watch
Anything goes in the fertile minds of stepbrothers Phineas and Ferb as they turn each day of summer vacation into an adventure, building everything they can dream up and squeezing the most fun possible into every day. watch