Set in 1938 during the Spanish Civil War the story begins in the small town of Baruelo where Miguel, 13 years old, lives with his family. His father, a miner and Republican fighter, has been missing presumed dead for two years.

1938. Barruelo. 13 year old Miguel believes that his father, a Republican miner, died at the Front. Then, unexpectedly, comes the news that he is in a prisoner camp close to Oviedo.

1938, Barruelo. Manuel, treize ans, croit que son père, mineur républicain est mort au front. De façon imprévue, il reçoit la nouvelle qu'il se trouve dans un camp de concentration, près d'Oviedo.

Manuel and his classmates have been selected to take part in the “Green Olympics”, organised in aid of sustainability and respect for the environment.