Emily Blunt stars as an idealistic FBI agent in the first trailer for "Sicario," the crime drama from "Prisoners" director Denis Villeneuve.

Recruited by a CIA official (Josh Brolin) to aid in the escalating war against drugs, Blunt's Kate Macy joins an elite government task force that's led on a clandestine journey into Mexico by an enigmatic consultant with a questionable past (Benicio Del Toro).

Opening Sept. 18, "Sciario" also stars Jon Bernthal, Daniel Kaluuya, Maximiliano Hernández and Jeffrey Donovan.