SAISON: 3
EPISODE: 89 - Phineas And Ferb S3 Ep89
SYNOPSIS
Mum asks the boys to be quiet while she takes her online knitting test, so they spend their quiet time inventing ninja outfits that make the wearer invisible. Baljeet stops being Buford's nerd, so Buford joins up with Doof - making things difficult for Perry.