'Riddick' Trailer Piles on the Alien Monsters (Video)

Vin Diesel Riddick Teaser - H 2013
<p>Vin Diesel Riddick Teaser - H 2013</p>
Vin Diesel's back as the criminal antihero.

The first full-length trailer for Riddick, the follow up to 2004's Chronicles of Riddick -- itself a sequel to 2000's Pitch Black -- has hit the web, and for fans of the Vin Diesel sci-fi franchise, there is much here to sink their teeth into.

Diesel is back as Riddick, a thuggish alien antihero who is on the run from mercenaries after a hefty price tag is placed on his head.

Left for dead on a sun-scorched planet crawling with monstrous predators, he activates an emergency beacon that lures bounty hunters hoping to reap the reward for his capture.

The Universal release, directed by David Twohy -- who helmed the first two -- is due in theaters Sept. 6.