Watch Online Free FlixHQ. After their narrow escape at the end of "Pitch Black," Riddick, Jack and the Imam find themselves at the mercy of a madwoman who intends to entomb Riddick forever as part of a twisted art exhibit. With little but a shiv and Riddick's innate viciousness to aid them, Riddick and his allies must find a way to escape from their captor and her band of mercenaries.