Hammer and Bolter is an anthology series that delves into the dark corners of Warhammer, presenting a multitude of different characters and factions.

An Imperial Shrine World in the Pariah Nexus has been invaded by the Necrons. The invaders have emerged triumphant and only a few pockets of surviving imperials remain to resist the invading Xenos.

Following the 'Argosa Uprisings' in 482.M39, the Retributor Chapter of the Adeptus Astartes is tasked with assisting in the hunt for fleeing renegades and their leaders, and bringing down the Emperor's justice for their crimes.