Carl Fredricksen is a 78-year-old balloon salesman. His entire life, Carl has longed to wander the wilds of South America. Then, one day, the irascible senior citizen shocks his neighbors by tying thousands of balloons to his home and finally taking flight. But Carl isn’t alone on his once-in-a-lifetime journey, because stowed away on his front porch is an excitable eight-year-old wilderness explorer named Russell. Later, as the house touches down on the world’s second largest continent, Carl and his unlikely traveling companion step outside to discover that not only is their new front lawn considerably larger, but that the predators therein are much more ferocious than anything they ever faced back home.