Driven almost to the brink of self-destruction by the death of Ferrus Manus, the Iron Hands now seek vengeance for the many horrors of Isstvan V. Gathering survivors from the Raven Guard and the Salamanders aboard any vessels capable of warp travel, they wage a new campaign of annihilation against the traitor forces across the galaxy - a campaign masterminded by legendary warleader Shadrak Meduson.