Set in the grim darkness of the 41st millennium, Warhammer 40,000: Darktide follows a band of convicted prisoners recruited into the Inquisition's service as expendable agents. Sent to the sprawling hive city of Tertium on the planet Atoma Prime, they must battle hordes of corrupted cultists and grotesque servants of the Chaos God Nurgle, whose plague threatens to consume the entire world. As the rejects prove their worth through brutal missions, they uncover a deeper conspiracy festering within the city's ranks. Facing overwhelming odds, relentless betrayal, and nightmarish enemies, they must rely on teamwork, skill, and determination to survive. In a universe where hope is scarce and sacrifice is constant, every mission is a desperate fight to preserve what little remains of humanity.