A young boy known as the Avatar must master the four elemental powers to save a world at war — and fight a ruthless enemy bent on stopping him.

Set in the late 1800s, this origin story follows Abby Walker, an affluent Bostonian whose husband is murdered before her eyes while on their journey out West, as she crosses paths with Hoyt Rawlins, a lovable rogue in search of purpose. Abby and Hoyt’s journey takes them to Independence, Texas, a small town with a big future.