When a composer is tasked with finishing her late mentor's concerto, she soon discovers that playing the music summons deadly consequences, leading her to uncover the disturbing origins of the melody and an evil that has awakened.

Years after the events of the original “Willow” film, this series introduces all-new characters to the enchanted realm of fairy queens and two-headed Eborsisk monsters, and welcomes back its namesake hero, Willow Ufgood.