When Phineas and Ferb take a time machine twenty years into the future, they meet a grown-up Candace, still determined to get them in trouble, who goes back into the past to stop them, as Perry the platypus continues to battle Dr. Doofensmirtz.

At head of title: Disney, Phineas and Ferb. "Based on the series created by Dan Povenmire & Jeff "Swampy" Marsh."