An Endangered Relationship is an episode of Phineas and Ferb. Phineas and Ferb try to help an endangered bird species but accidentally make Phineas and Isabella get in a fight, so Ferb, Baljeet, and Buford try to get them back togethor. Meanwhile, Dr. Doofenshmirtz tries to trick people into donating him money. Also, Candace and Jeremy try to relax at the beach but Candace wants to bust the boys, so she doesn't know what to do.