Tris and the gang get to see what lies beyond the wall that had them "in a cage." The wait is finally over! A full-length, action-packed, all-in-one trailer for "The Divergent Series: Allegiant," the penultimate film in the hit young adult franchise, has just been released, allowing fans to check back in on Tris, Four and the rest of the group in a far more dangerous dystopian Chicago.