Left for dead on a sun-scorched planet, Riddick finds himself up against an alien race of predators. Activating an emergency beacon alerts two ships: one carrying a new breed of mercenary, the other captained by a man from Riddick's past.
An undercover cop infiltrates an underworld subculture of Los Angeles street racers looking to bust a hijacking ring, and soon begins to question his loyalties when his new street racing friends become the prime suspects.
5 years after Pitch Black, the wanted criminal Riddick arrives on a planet called Helion Prime, and finds himself up against an invading empire called the Necromongers, an army that plans to convert or kill all humans in the universe.
Disgraced Navy SEAL Shane Wolfe is handed a new assignment: Protect the five Plummer kids from enemies of their recently deceased father -- a government scientist whose top-secret experiment remains in the kids' house.