After a terrifying incident on the Caprini, Sharp and his elite team, consisting of resilient, witty, and trigger loving Space Marines, must now travel to the icy planet of Mezzo to investigate further activities in Mahal. When they face the huge anthropophagus, an underground city composed of semi robot, a series of ferocious extraterrestrial entities, and perhaps finally the elusive Mahal, everything they will encounter will challenge their imagination.