Manolo has a simple life in Southern Spain and two loves: his animals, in particular his donkey Gorrión ("Sparrow"), and wandering through nature. Against the advice of his doctor, he decides to plan one last walk in the US, the brutal 2200 mile Trail of Tears. But not without his donkey. Overcoming the small obstacle of shipping a donkey, Manolo's chronic arthritis, a history of heart attacks, and Gorrión's fear of water are just a few matters to take care of. As their adventure continues, Manolo's wondrous friendship with his animals finds a beautiful equilibrium. Will they find the American West? More importantly, will they be able to see life as it is, and not as it should be?