Phineas and Ferb fans! Dust off your blueprints and get ... a big sister on the verge of a meltdown. Candace is still trying to catch the boys in the act, and her frustration remains as ...

"Phineas and Ferb follows the inventive stepbrothers as they tackle another 104 days of summer. Candace is more determined than ever to finally bust her little brothers," an official synopsis reads.