Quietest Day Ever Phineas and Ferb : Season 3 Episode 39
TV-G Disney Channel 15m int(0)
Aired: March 30th, 2012 @ 6:00 PM EST on Disney Channel
After Mom asks the kids to keep quiet while she prepares for her online knitting test, Phineas and Ferb create ninja outfits designed to hide the wearer from anyone who is not wearing them. Meanwhile, Candace becomes increasingly frustrated after she can’t find the boys and bust them. Across town, Dr. Doofenshmirtz invents the De-Handsome-Inator.