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.
| Title | Quietest Day Ever |
|---|---|
| Genres | Animation Comedy Family Sci-Fi & Fantasy |
| Release Date | 2012-03-30 |
| Episode Runtime | 00 Hours 12 Minutes |
| Season Number | 3 |
| Episode Number | 39 |
| Production Companies | Disney Television Animation, Disney Channel |
