The third trailer debuted during the Google Hangout Live Chat, but here it is in its own separate video and at a much higher quality. Imagine Dragons’ “Radioactive” is used again in the trailer.
We get to see a much better view of what a soul looks like outside of a body, the “ship” that holds one, and the implantation process.
You can see the interrogation process with The Seeker, and Wanderer’s first realization that Melanie is resisting. You can also see where Melanie takes back her body in a way and crashes the car in the desert.
The mirror system in the caves is also featured.
The point of escape from the Seeker is seen. You could only briefly see it in The Seeker featurette.
Update: Added a bunch of screencaps below the trailer.
Original Source: The Host on Youtube, Screencaps from The Host Movie News