Ultramarines: A Warhammer 40,000 Movie

Ultramarines A Warhammer 40,000 Movie is a science fiction CGI film set in Games Workshops fictional Warhammer 40,000 universe and based on the Ultramarines Chapter of the Space Marines. Terence Stamp, Sean Pertwee, and John Hurt head the cast of voice actors, and the screenplay was written by Black Library author Dan Abnett.

In orbit above the planet, Captain Severus departs the cruiser with only the Ultima Squad, highly eager to prove themselves in battle, for support. En route to the planets surface, Severus addresses the squad, informing them of the distress call received shortly before all contact with the planet was lost, and how it is still unclear whether it is automated or not. Soon they are on the tough and unforgiving surface of Mithron, and the only location of importance is a shrine guarded by 100 Imperial Fists. Ultima Squad quickly discovers that a terrible battle has taken place, with the garrison force annihilated and the planets Imperial shrine desecrated. It is also evident that the forces of Chaos are responsible, and Severus decides they must continue the mission to search for any remaining survivors.While approaching the ruins, the Ultramarines are ambushed by the Black Legion. Three Ultramarines are killed but the ambush is thwarted. The squad continues on, and in a dark passage of the shrine they are attacked by a Daemon Prince which grapples with Severus, and they both fall through the wall and down a ravine. With Severus gone and Crastor dead, command of the squad falls to Proteus who decides to continue with the mission. Progressing to the reliquary at the shrines summit, they find Chaplain Carnak and Brother Nidon, the sole surviving Imperial Fists. They reveal they have been protecting the Liber Mithrus, an ancient sacred Codex given by the The GodEmperor of Mankind himself. Ultima Squad agrees to help escort the book to safety, but Verenor and Proteus remain suspicious, questioning how just the two of them have managed to survive for so long. As Ultima Squad retreat to the extraction point, they are attacked by a huge force of Chaos Space Marines. During the fight they suffer heavy casualties, and just as they are about to be overwhelmed, Severus suddenly reappears and aids their escape. ........

Source: Wikipedia