The galaxy teeters on the brink of collapse. An era of decay has begun, marked by an unprecedented concentration of world-ending power. The minions of the four malevolent Chaos Gods rampage across the real universe, monstrous nightmares from the warp unleashing destruction and despair upon countless human worlds.

But a flicker of hope ignites within the encroaching darkness. A soul from another world, armed with incredible technology, awakens within the resurrected body of the Emperor's thirteenth son, Guilliman. This rekindles the war between humanity and the ruinous Chaos Gods.

Under the banner of the Emperor, countless human heroes rise anew. Blood and fallen comrades will pave the path to mankind's ultimate glory.

**But Guilliman's awakening is met not with cheers, but a blunt reality: humanity is on the verge of extinction.**