Follows the story of Miguel Santos, a. k. a. Sugar (Algenis Perez Soto), a Dominican pitcher from San Pedro de Macorís, struggling to make it to the big leagues and pull himself and his family out of poverty. Playing professionally at a baseball academy in the Dominican Republic, Miguel finally gets his break at age 19 when he advances to the United States' minor league system; but when his play on the mound falters, he begins to question the single-mindedness of his life's ambition.