Attached to Crusade Fleet Quintus - dubbed the Cursed Fleet by many - the Ultramarines of the Ithraca’s Vengeance are drawn to a stricken world. With millions enslaved, a malign necron technology siphons the souls of the innocent and heralds the Silent Kingdom’s expansion. The Ultramarines face an impossible decision: mount a desperate last stand to destroy the Pariah Nexus, or break away and damn the entire sector to bring word of this ancient foe’s resurgence to the only being capable of halting it - the Lord Primarch Roboute Guilliman.  

Ciaphas Cain's latest mission takes him and his Valhallan regiment to the planet of Adumbria to defend against an approaching Chaos invasion. However, infighting with fellow Imperial Guard regiments from the world of Tallarn, commanded by an old 'friend' of Cain's from the Schola Progenium and the uprising of a sinister cult on the planet puts paid to any hopes of an easy life.

On the world of Verghast, a grinding war between two hive cities - one loyal to the Imperium, the other fallen to the worship of the Dark Gods - is bolstered by the forces of the Astra Militarum, spearheaded by the Colonel-Commissar Gaunt and the Tanith First and Only. But bitter rivalries and treachery threaten to derail the defence of Vervunhive, and it falls to Gaunt to take command of the Imperial forces and forge victory from an almost certain defeat.   

The Traitor Host of Horus Lupercal tightens its iron grip on the Palace of Terra, and one by one the walls and bastions begin to crumple and collapse. Rogal Dorn, Praetorian of Terra, redoubles his efforts to keep the relentless enemy at bay, but his forces are vastly outnumbered and hopelessly outgunned. Dorn simply cannot defend everything. Any chance of survival now requires sacrifice, but what battles dare he lose so that others can be won? Is there one tactical stroke, one crucial combat, that could turn the tide forever and win the war outright? 

There are those in the great expanse of the galaxy that seek profit wherever it is to be found: the deal makers, the opportunists and explorers – the Rogue Traders. Granted power by an ancient charter, sanctioned by the Emperor Himself, these scoundrels, entrepreneurs and adventurers roam the galaxy in search of fortune and glory. None perhaps are as hungry for these twin vices as Janus Draik.

As Guilliman, Regent of Terra, heads off to lead the Indomitus Crusade, he leaves behind a world still in turmoil, beset by cult activity. Stripped of its huge armies for the galactic offensive, recovery is precarious. The Custodians do what they can while keeping the Palace secure, and the Sisters of Silence rebuild their citadel on Luna. When the warship Phalanx returns, it seems that stability will at last be assured. However, as reconquest forces push out further into the slums, they come across signs that another mysterious foe is active.

Glory returns to Fenris. Magnus the Red and his traitorous legion are defeated upon the icy cliffs of the Space Wolves’ home world, their hollow remains scattered into the darkest depths of the World Sea. Yet Ragnar Blackmane, the youngest Wolf Lord in his Chapter’s noble history, does not feel victorious. He is uneasy. Uncertain of his purpose and place in the great war for the Imperium. Until a vision strikes him of a terrible beast, one greater than any he or his warriors have faced before. 

Constantin Valdor. It is a name that brings forth images of heroism, honour and peerless duty. For it is he who commands the will of the Legio Custodes that most esteemed and dedicated cadre of elite warriors. He is the Emperor’s sword, His shield, His banner and he knows no equal. Clad in shining auramite, his fist clenched around the haft of his Guardian Spear, he is the bulwark against all enemies of the throne, within or without. Nearing the end of the wars of Unity, Valdor’s courage and purpose is put to the test as never before. 

Lieutenant Xedro Farren is a Primaris Marine, stronger and more adept than even the Space Marines his brotherhood is sent to fight alongside. As the Dark Angels and the Primaris Marines fight a trauma-scarred force of T’au hellbent on destroying their former allies, the true quarry becomes clear - the shadowy instigator of a psychic curse that could plunge a string of Imperial planets into madness. As worlds burn in the fires of battle, an unthinkable pact is struck, with the Primaris Marines peeling back layer after layer of deceit to find the appalling truth. 

Across the war-torn galaxy, the Imperial Guard are a bastion against the enemies of mankind. From the elite veteran drop troops of Elysia to the fierce Catachan jungle fighters and from Valhalla's ice warriors to the crews of mighty battle tanks, the many regiments of the Astra Militarum defend the Emperor's realm against all who would tear it asunder. This audio drama anthology contains seven tales of the brave soldiers of the Astra Militarum. A three-part story delves into intrigue surrounding Sergeant Zachariah of Elysia as he faces traitors. 

Under almost constant besiegement by the hosts pouring from the Eye of Terror, Cadia acts as a bulwark against tyranny and death. Its fortresses and armies have held back the hordes of Chaos for centuries, but that grim defiance is about to reach its end. As Abaddon's Thirteenth Black Crusade batters Cadia's defences, and armies of the Imperium flock to reinforce this crucial world, a terrible ritual long in the making comes to fruition and the delicate balance of this brutal war shifts.

As the Great Rift tears the galaxy apart, portents and darkness beset Mephiston. At the time when he needs his psychic sight the most, the chief librarian's powers are rendered blind. Haunted by the ghosts of the damned, their purpose unclear, Mephiston takes his ship the Blood Oath and the Blood Angels in his charge to the world of Morsus, where he believes the source of his psychic blindness is to be found. But Morsus is embroiled in conflict too, a longstanding struggle between the Imperium and some of its most ancient foes called the Revenant Crusade. 

The scattered worlds of the Elara's Veil nebula were once protected by the oath of unity sworn by three mighty Chapters of the Adeptus Astartes. The Star Scorpions were undone by flaws in their genetic coding. The Celestial Lions were ravaged by the Inquisition for sins they did not commit. Now, after hundreds of years, only the Emperor's Spears still keep their vigil. They are barbarian watchmen against the Outer Dark, bloodied but unbroken in their long duty.   

The war for the fate of mankind blazes on. Though the outer defences have fallen, the walls of the Palace itself remain inviolate as Rogal Dorn, the Praetorian of Terra himself, uses every known stratagem and ploy to keep Horus' vast armies at bay. In Perturabo, the Traitor siegebreaker, Dorn faces an adversary worthy of his skill. A terrible, grinding attrition ensues. The crucial battle for the Lion's Gate spaceport is at the heart of this conflict. With it in their possession, the Traitors can land their most devastating weapons on Terran soil. Dorn knows it must not fall.

The Deathwatch are the elite of the elite - small teams of Space Marines handpicked for special missions that require the utmost courage and cunning. Now recovered from the injuries sustained on his previous mission, Codicier Karras must lead Talon Squad in the hunt for a missing inquisitor. Their only clue is the name of an Imperial planet that has been taken over by the T’au. Is the missing inquisitor alive or dead? Worse still, has she gone rogue, jeopardising one of the Inquisition’s most secret projects?