In the future, the planet is devastated by pollution. Five-year-old Anahí accompanies her mother to exchange scrap metal for some drinking water. On the way home, an evil figure takes possession of the precious liquid, triggering a tragic end for this mother and daughter.
Solange and Martín are left alone at home before an emergency exit from their mother. Their beloved grandmother visits them unexpectedly and the three of them will spend an unforgettable night. The next day their mother brings them news.
Matías shares the same passions as his grandfather Leonel: the accordion and trains. When his grandfather dies, Matías inherits his grandfather's accordion and through music he resists giving up the wagons that lie abandoned twenty years later for dead.
