Phineas, Ferb, and their friends take a swamp to pick up all the trash and pollution so the fireside girls can earn their environmentalist patches, but things take a turn for the worst when Dirty Matt climbs aboard, kidnaps Phineas and Ferb and attempts to drown them. Meanwhile, Dr.Doofenshmirtz, who is tired of dropping heavy things on his feet, tries to make all heavy things as light as a feather.meanwhile the fireside girls Buford and Bajeet went to go save Phineas and Ferb from Dirty Matt.Buford challanges Dirty Matt into fist-fighting to see whos tougher and stronger.as Buford and Dirty Matt fist-fight Buford won