Son

A man lives inside a large billboard on the edge of a crowded and dirty city. Every morning he goes to the city carrying a big tree in the back of his van. Planting and growing trees in the city was prohibited years ago. That's why the man constantly gets in trouble with the police. But the man stubbornly goes to the city every day and tries to introduce the people to the trees again. There is a child in the city he cannot leave behind, and the man is holding a seed.