Based on real events, the film tells one of the greatest myths in Basque history: Arzo's giant Miguel Joaquin. The story takes place in the Basque region in 1843. When the young disabled Martin returned home from defeat, he could not believe his eyes. Martin's dear brother Joaquin has become a real giant, but Joaquin's height is of little help in running a family farm. In order to make ends meet, the two embarked on an adventure.