
Riddick has spent the last five years on the run among forgotten worlds at the back of the galaxy, hiding from the mercenaries who put a price on his head. Now the fugitive finds himself on the planet Helion, home to a progressive multinational society conquered by Lord Marshal, a fanatic determined to enslave humanity with an armada of his warriors, the Necromongers.
After escaping from an underground prison where temperatures ranged from arctic nights to volcanic days, Riddick meets Kaira, the last surviving woman from earlier in his life. His attempts to free himself and Kaira lead them aboard the Necromonger's main ship, where he must face Lord Marshall in an apocalyptic battle not for life but for death.