A seneshal walks into a shopkeepers workshop to purchase a weapon, but what he finds is the darkness residing inside his own soul.

One lone squad of marines, trapped behind enemy lines, low on ammo and supplies, hatch a desperate plan to use the greenskins own weaponry against them. Rescuing a tech preist from an ork convoy, they take shelter in a Tau Fortification and find a relic that may very well save the Imperium of Man, if they can survive and bring it back in time.