The popular Games Workshop board game comes to the screen in this CG animated sci-fi epic featuring the voices of celebrated actors Terence Stamp and John Hurt. In the 41st Millennium, the noble Space Marines are mankind's last line of defense against the invading aliens who seek to wipe out the entire species. Genetic enhancement and impenetrable armor make the Space Marines a formidable force, but only the very best of them earn the distinction of becoming Ultramarines. Their skills are put to the ultimate test when a distress beacon draws them to a distant planet consumed by a powerful force of cosmic evil. But the most terrifying revelation is yet to come.