1953. Kilian and his brother Jacobo leave their hometown of Huesca for the distant, unknown and exotic island of Fernando Po. There their father is waiting for them, the owner of the Sampaca plantation, where one of the best cocoa in the world is grown and roasted.On these evergreen and warm shores, the brothers discover the life of a colony, so different from boring and gray Spain| share the hard work on the plantation | explore cultural differences and similarities between newcomers and natives| and know friendship, passion, love and hate. But one of the brothers crosses the forbidden line and hopelessly falls in love with a native. Their love and complicated relationship between settlers and islanders changes the relationship of the brothers and the course of their lives, and becomes a source of mystery that will affect even future generations.2003. Clarence, Jacobo's daughter and Kilian's niece, wants to know about her origins and plunges into the past, where she discovers this mystery that will finally be solved.