Gunshots and action abound in the official teaser trailer for Skyfall, where Daniel Craig returns as his version of James Bond: slick, ruthless, poker-faced.

"Some men are coming to kill us. We're gonna kill them first," he says in one of the few lines of dialogue from the trailer.

PHOTO: 'Skyfall' Poster Recalls Bond's History

The promo for the spy thriller is scarce on plot details, showing a montage of scenes -- a man falling, Bond blasting his gun, a row of caskets shrouded with the British flag -- that are dark, suspenseful and dead-serious.

Skyfall, slated for release in late October, marks Sam Mendes' first turn directing a 007 movie. Javier Bardem is the villain (look for his shadowy outline against a fiery background in the trailer); Judi Dench returns as M, and Ralph Fiennes portrays a U.K. government official.