Double bill of sci-fi action. In 'Pitch Black' (2002), technical problems force the spaceship Hunter-Gratzner to crash land on a distant planet with forty passengers on board. The passengers were heading for other worlds and only ten have managed to survive. One of them, Riddick (Vin Diesel), is an armed and dangerous convict determined to take control of events. The planet at first seems barren, with no evidence of water or living creatures - but when the sun sets the survivors discover they have the planet's terrifying nightlife to contend with. In the sequel, 'The Chronicles of Riddick' (2004), Riddick escapes to the distant planet of Helion in a desperate attempt to evade the mercenaries after him - only to find himself caught in the middle of a violent and bloody intergalactic conflict between two opposing forces: the Elementals, led by Aerion (Judi Dench) and the Necromongers, led by the bloodthirsty Lord Marshall (Colm Feore).