Following a temporary production shutdown in 2011, the third installment in the Chronicles of Riddick series - which Universal is now officially referring to as simply Riddick - has begun filming once again. Vin Diesel is back in black (goggles) as the titular ex-convict with augmented vision, and has been treating fans with set photos that feature the actor in costume, on the sci-fi action/thriller threequel's set.

Today, we have two additional images of Diesel, striking poses on the Riddick set - along with the film's official plot synopsis and complete cast list (via Universal Pictures' press release).

Read on for the studio-sanctioned description of the Riddick storyline:

The infamous Riddick has been left for dead on a sun-scorched planet that appears to be lifeless. Soon, however, he finds himself fighting for survival against alien predators more lethal than any human he's encountered. The only way off is for Riddick to activate an emergency beacon and alert mercenaries who rapidly descend to the planet in search of their bounty. The first ship to arrive carries a new breed of merc, more lethal and violent, while the second is captained by a man whose pursuit of Riddick is more personal. With time running out and a storm on the horizon that no one could survive, his hunters won't leave the planet without Riddick's head as their trophy.

Now, check out two new photos of Diesel on the Riddick set, below:

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