Years later, Carl still lives in the house, stubbornly holding out as the surrounding neighborhood is torn down for new construction, but when he accidentally injures a construction worker over damage to his mailbox, a court orders him to move to a retirement home. However, Carl comes up with a scheme to keep his promise to Ellie, and turns his house into a makeshift airship, using thousands of helium balloons. Russell, a young Wilderness Explorer, becomes an accidental stowaway in his effort to earn his final merit badge for assisting the elderly. After surviving a thunderstorm, the flying house lands on a tepui opposite Paradise Falls. Carl and Russell harness themselves to the still-buoyant house and begin to walk it across the mesa, hoping to reach the falls before the balloons deflate. Russell encounters a tall, colorful flightless bird, whom he names "Kevin". They then meet a Golden Retriever named Dug, who wears a special collar that allows him to speak, and who vows to take