In the distant past, an ice world, [[Lorn V]], on the galactic fringe was lost to the forces of [[Chaos]]. When the [[Imperial]] forces withdrew, they left the wreckage of a fallen [[Titan]] behind. Now a regiment of [[Cadian Shock Troopers]] of the [[Imperial Guard]] has come back, under the fierce command of [[General Sturnn]], with aid from a small company of [[Ultramarines]] led by [[Chaplain]] Varnus, to reclaim the Titan for the Imperium.