In Allegiant, Beatrice Prior and Tobias Eaton venture into a new and unknown world beyond the fence surrounding Chicago, where they are taken into custody by a mysterious agency known as the Department of Genetic Welfare, which shatters their previous beliefs to reveal shocking new truths. The third installment, picking up exactly where Insurgent left off, sees the return of Tris, Four, and all the other protagonists from the Divergent series as they grapple with themes of courage, loyalty, sacrifice, and love.