The last year of school is a moment in life that marks us: expectations and dreams about the future, family pressures, leaving friends who have been with you for years, closing one stage of life and facing another. "4º Medio" follows a group of 8 classmates from a middle class school in Santiago de Chile. With a close, intimate, dynamic narration, the series reflects the conflicts of this age where the kids are pressured to make decisions that will mark them forever.