Phineas Y Ferb 1x18 - [top]

: Candace discovers that her grandmother, Betty Jo, was once a roller derby champion. Challenged by her rival, Hildegard, to a race, Candace joins her grandmother on the track. Meanwhile, Phineas and Ferb build a high-tech roller derby rink for the occasion The Best Lazy Day Ever

If you are watching on Disney+ or purchasing the season digitally, If you are watching an old DVD set that lists episodes by production number, you might be in the wrong place. Always check the title. Phineas y Ferb 1x18