Phineas and Ferb Season 1 Episode 21 It's About Time! ( Air Date 2008-03-01 ) Genre Animation, Comedy, Family, Sci-Fi & Fantasy category. Overview "Phineas and Ferb find a time machine at a museum and travel back to the Jurassic Age. Meanwhile, Perry is sad when Doofenshmirtz replaces him with a new nemesis, Peter the Panda, so he confides in a relationship talk-show host.".
Phineas and Ferb Season 1 Episode 21 It's About Time!
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- Watch: Phineas and Ferb Season 1 Episode 21 It's About Time! on CWR-CRB
- Stars: Vincent Martella, Thomas Brodie-Sangster, Ashley Tisdale, Caroline Rhea, Dee Bradley Baker, Alyson Stoner, Bobby Gaylor, Dan Povenmire, Jeff 'Swampy' Marsh, Maulik Pancholy, Richard O'Brien, Mitchel Musso, Kelly Hu, Tyler Alexander Mann
- Director: Darrin Drew, Jeff 'Swampy' Marsh, Dan Povenmire, Danny Jacob
