The fourth trailer for Open Road Films' The Host shows Melanie Stryder (Saoirse Ronan) meeting Jared Howe (Max Irons) for the first time, in a world where human beings are practically extinct. Director Andrew Niccol's adaptation of Stephenie Meyer's novel is set in a world where aliens known as Souls have taken over the minds and bodies of nearly the entire human race, except for a chosen few known as The Resistance. Take a look at the latest footage from this sci-fi drama, also starring Diane Kruger, Jake Abel, and William Hurt.