Guy gets flicked by a monsters tail into a cliff and explodes

After the events of Pitch Black, a contractor is hired to locate Riddick, dead or alive. He reviews available information on him and the events of Pitch Black. Terrified, he hires a female cyberpunk merc to do the job for him.

When their ship crash-lands on a remote planet, the marooned passengers soon learn that escaped convict Riddick isn't the only thing they have to fear. Deadly creatures lurk in the shadows, waiting to attack in the dark, and the planet is rapidly plunging into the utter blackness of a total eclipse. With the body count rising, the doomed survivors are forced to turn to Riddick with his eerie eyes to guide them through the darkness to safety. With time running out, there's only one rule: Stay in the light.