Sister Marina, a very unorthodox nun, is sent during the summer of 1994 to El Parral, a boarding school for boys threatened to be closed soon. Even though the kids welcome Marina with all kinds of pranks, they will, little by little, become something very close to the family they never had.
This is the story of a normal person who does extraordinary things. Someone who pursues and achieves triumphs through taking care of the small details, because these are, after all, the ones that make him a different soccer player.