PhineasXIsabella KISS!!

An alien named Meap crashes in Phineas and Ferb's backyard, and runs off. The boys try to find the cute alien, as Doofenshmirtz tries to find his old friend Balloony.

Episode Summary

Phineas and Ferb accidentally knock an alien spacecraft into their backyard while playing baseball. It falls into their backyard and they find Meap. Meap shows them a picture of a rogue alien and Phineas misinterprets it as his father. While they are busy trying to repair it, Candace discovers Meap, an alien she believes has been "roboticized" by Phineas and Ferb, and sets out to bust her brothers with the evidence...

Ferb Fletcher is a British Fletcher child from Danville. He is the step-son of Linda Flynn and son of Lawrence Fletcher. His stepsister is Candace, and his stepbrother is Phineas. He is friends with Buford, Baljeet, and Isabella.
Very laconic, Ferb is not actually shy like one would assume, but very courageous and clever. Quick thinking and on his feet about things, Ferb is a mechanical and technical genius, Ferb has built a plethora of things, from a roller coaster to a rocket to robots. Ferb only says about 1-2 sentences every episode, being the most silent character in the series. Ferb was...

As the two boys are sitting underneath the tree in the backyard, Phineas tells Ferb that one of the best times they ever had was when they built the rollercoaster. He proposes that they do it again, only this time as a musical— breaking into spontaneous music and choreography without a discernible music source. Ferb wonders if they would have any assurance that everyone else would break into song and dance along with them. Phineas thinks they probably will, so Ferb accepts. Phineas then starts singing the first musical number Hey Ferb (I Know What We're Gonna Do Today).

Linda tells Phineas...