The first epic teaser trailer for the third installment of the blockbuster, action-adventure Divergent franchise, The Divergent Series: Allegiant, has arrived. After the earth-shattering revelations of The Divergent Series: Insurgent, Tris (Shailene Woodley) must now escape with Four (Theo James) beyond the Wall that encircles Chicago to finally discover the shocking truth of what lies behind it. Check out the electrifying new teaser trailer and poster and don't miss The Divergent Series: Allegiant, in theaters March 18, 2016.

Last week, Lionsgate confirmed that the last two installments of this franchise have changed the titles, slightly. The Divergent Series: Allegiant - Part 1 was shortened to The Divergent Series: Allegiant, with the final installment now entitled The Divergent Series: Ascendant, still slated to hit theaters on March 24, 2017. It hasn't been revealed what these title changes could mean for the story, but author Veronica Roth recently released a statement on her Tumblr page regarding the title change.

"What does this mean? Well, basically, it means there are going to be some changes, but it's really too early to know exactly what those changes will be or the extent of them. I know changes always make fans of the books - and the author! - nervous, but hopefully the characters we know (and love. Or sometimes love to hate?) will still be intact, which is really the important thing. I am eager to see how these movies turn out, along with you guys."

The third installment of the blockbuster Divergent series franchise, The Divergent Series: Allegiant takes Tris (Shailene Woodley) and Four (Theo James) into a new world, far more dangerous than ever before. For the first time ever, they will leave the only city and family they have ever known in order to find a peaceful solution for their embroiled city. Once outside, old discoveries are quickly rendered meaningless with the revelation of shocking new truths. Tris and Four must quickly decide who they can trust as a ruthless battle ignites beyond the walls of Chicago which threatens all of humanity. In order to survive, Tris will be forced to make impossible choices about courage, allegiance, sacrifice and love.

Rounding out the cast is Octavia Spencer, Naomi Watts, Jeff Daniels, Ray Stevenson, Zoë Kravitz, Miles Teller, Ansel Elgort, Maggie Q, Keiynan Lonsdale, Jonny Weston, Mekhi Phifer, Daniel Dae Kim, Nadia Hilker and Bill Skarsgård. Production is still under way on The Divergent Series: Allegiant, which will go up against Miracles from Heaven and Monster Trucks on March 18, 2016. While we wait for more details on this highly-anticipated sequel, check out the first trailer and poster below.

Related: Divergent 4 Budget Slashed as Allegiant Falters at the Box Office

<strong><em>The Divergent Series: Allegiant</em></strong>