Riddick is a 2013 British-American science fiction film, the third installment in the The Chronicles of Riddick film series. Produced by and starring Vin Diesel as the title character, Riddick is written and directed by David Twohy, who previously wrote and directed the first two installments, Pitch Black (2000) and The Chronicles of Riddick (2004). Twelve years after the events of Pitch Black, Riddick has become increasingly uneasy in his role as Lord Marshall of the Necromonger fleet. His refusal to swear into the Necromonger faith has caused dissent among his subjects and assassination attempts by his subordinate commanders. Riddick strikes a deal with Commander Vaako; the location of Furya and a ship to take him there, in exchange for Vaako becoming the next Lord Marshall. Led by Vaako's aide, Krone, Riddick and a group of Necromongers arrive on a desolate planet. Recognizing that it is not Furya, Riddick kills most of his escort when they attempt to assassinate him. In the chaos, Krone causes a landslide and buries Riddick alive. Emerging from the rubble with a fractured leg, Riddick manages to reset and splint his broken leg and fend off native predators: vulture-like flying animals, packs of jackal-like beasts and swarms of venomous, scorpion-like water dwelling creatures called Mud Demons.