Carl Fredricksen, a little boy with a passion for adventure, met a tomboy named Ellie. Ellie's game of treating the whole house as a big spaceship actually made him a little fascinated by this girl. The same hobby eventually made the two of them become lifelong lovers. They had a dream, that is, to explore the "Wonderland Falls" in South America one day, but this dream was not realized until Ellie died. Finally one day, Carl, an old man who used to sell balloons, actually used colorful balloons to pull his house into the sky. He decided to realize their unfulfilled dream. What Carl didn't expect was that a little boy named Russell who claimed to be a "wilderness pioneer" actually picked up a ride on the porch. Russell's chattering made Carl particularly hate this fat boy. The old man and the young man went through numerous difficulties and dangers during the flight and finally saw the legendary "Wonderland Falls". In the process of getting along, Carl found that Russell was actually a lovable child. While walking through a forest, they met Kevin, a big bird that couldn't fly, and Dug, a talking dog. To the old man's surprise, they also met his idol when he was young, explorer Charles Muntz, and he found that Muntz was a bad guy who would do anything to achieve his goals. At this time, the old man was only one step away from his dream place... This film won the 82nd Academy Awards for Best Animated Feature Film and Best Original Score.