As the Emperor travels the galaxy at the head of his Great Crusade, few events are as important as rediscovering his scattered sons, the primarchs, and bestowing them as the masters of their Legions. United, a Legion becomes a reflection of its primarch, both in his strengths and his flaws. For the Twelfth Legion, once the War Hounds and now the World Eaters, the line between strength and flaw is almost impossible to separate. Placed in command of a Legion he does not want, in service to a father he cannot forgive, Angron gives an ultimatum to his children, one that will set them down a path that they can never return from. So desperate for his acknowledgement, will the World Eaters follow their father and cast themselves in his broken image or will they resist? And will any of them ever learn who their father was truly meant to be?