This is the story of Arthur, the stray dog who walked out of the jungle in Ecuador when offered a meatball by Mikael Lindnord, head of a Swedish extreme sports team. The team were on a 430-mile race through the Amazon when they met Arthur, but the dog wouldn't leave them, despite injury and illness. He followed them all the way to the finish line, where Mikael decided to take him home to his family in Sweden. This is the story of Arthur, who walked out of the jungle one day and didn't stop walking until he found a home.