Warhammer 40,000 - The Way of Blood

On the Macropol world of Ikara, the war presents the Primaris blood brothers Kastor and Polixis with a difficult test. A gigantic orc offensive threatens to destroy the imperial defensive positions. The Chaplain and the Apothecary of the Ultramarines - the first Primaris Marines recruited from the Ultramar Empire - are separated and stranded far behind enemy lines. Soon it becomes clear that Urgork, the leader of the orcs, is looking for more than just the bloodshed of battle. The greenskins are hunting for one of the two brothers. If they want to defeat the alien threat, they must be prepared to make the greatest sacrifice of all - each other's death.