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Phineas and Ferb
Season 4, Episode 19
Episode Title: Happy Birthday, Isabella
Air Date: 2013-07-12
Overview:
Phineas and the gang celebrate Isabella's birthday in a big way, but all she really wants is some quiet time with Phineas. Meanwhile, Doofenshmirtz has installed his Bugs Me-Inator onto an evil bug bus and is driving around Danville turning all the things that bug him literally into bugs.
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