A green pendant is the only totem Connor Illium has of his mother left after an attack from a sinister group of soldiers left him and his brother Jack alone; his father slain and his mother gone without a trace. Desperately, Connor grasps for any clues to unlock the secrets of that night and where his mother has gone, with Jack growing increasingly concerned over his brother's secluded nature along with their lack of answers.
Coming up empty handed after months on their own, the brothers quickly start to lose hope. That is until the two come into contact with a mysterious stranger with a pendant strikingly similar to Connor's. And unfortunately, he doesn't appear to be an ally.
Soon after, Connor and Jack find themselves in the company of a group known as the Sentinels, hunting for this stranger and other dangerous individuals like him within their country of Solaton. With the addition of the bubbly Serena, the paranoid Henry, and the secretive and allusive Mara, the brothers try to keep their homeland and allies safe, while unraveling the secrets all around them, and searching for what it will take to bring their mother back home safely.