Eli and Harper have fled the compound - running from people who once fought by their side. Owen has been captured, Sawyer is infected, and Celdon is facing a crisis of conscience.
When Eli gets wind of an attack that puts Owen's life in jeopardy, everything changes. Eli is determined to rescue his brother, but Harper will have to make a choice: follow Eli along on a suicide mission or push forward without him to find a cure.
In the heart-pounding final chapter of The Fringe, relationships will be tested, friends will perish, and the war-torn desert will burn.