Dorset, 1642. When bloody civil war breaks out between the King and Parliament, families and communities across England are riven by different allegiances. A rare few choose neutrality. One such is Jayne Swift, a Dorset physician from a Royalist family, who offers her services to both sides in the conflict. Through her dedication to treating the sick and wounded, regardless of belief, Jayne becomes a witness to the brutality of war and the devastation it wreaks.