The trailer opens with Jeanine (Kate Winslet) standing with some mysterious box.
And Tris and Caleb (Ansel Elgort) are nervous about this box being in Jeanine's hands because she's going to test every Divergent until she finds one who can open it.
It's not too long before Tris is fighting again. And Four (Theo James) is there to help her!
They all jump in front of a moving train and find themselves in a new faction-less society.
The new place kind of looks like the Dauntless living quarters.