Undercover Carl and Hip Hip Parade/Credits

Phineas and Ferb create a device to reverse the effects of gravity. Meanwhile, Agent P is literally sent on a wild goose chase when Major Monogram believes the boys are actually out to destroy the Tri-State Area. Elsewhere, Doofenshmirtz finds the blueprints to the anti-gravity machine and takes them for his own purpose.

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Phineas and Ferb decide to spice up the yearly "Tri-State Area Unification Day" parade by rallying all of the neighborhood kids to build their own customized floats. Unfortunately, Buford's family grudge against the parade causes him to throw the day's festivities off course. Meanwhile, Candace finds it difficult to enjoy a relaxing mother-daughter day with Mom because of the boys' antics taking place all around her, and Dr. Doofenshmirtz plans to create traffic jams with his Duplic-8-inator.

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Ending Credits
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