Colonel T'Phai, the Skinnie who was partially responsible for Carl's fried brain, is not particularly welcome when he joins the unit just as they're assigned the task of taking Zegema Beach as part of the Tesca Nemerosa campaign.

After Gossard receives a minor injury, Rico is assigned a Marauder suit for their mission upriver to capture a Brain Bug. But what they find is a nursery for new and even more dangerous species. Razak calls in an airstrike, but Rico is separated from the squad and is in its path as his Marauder runs out of power.