Part 4/8:
Upon arriving at Marine Corps headquarters, the squad learns about the increasingly alarming situation at the former Soviet base. Loss of communication and the inexplicable disappearance of personnel raise suspicions and fears of a conspiracy. As preparations for the operation begin, it becomes evident that they are ill-equipped for the dangers that lie ahead.
Entering the Unknown
As the Marines approach the deserted base, an uneasy silence envelops them, foreshadowing the impending danger. Tensions rise as Mike insists on a more cautious approach which is initially dismissed by his brother Chris, who is now in command. Upon breaching the base, they encounter desolation; signs of human life are absent, replaced instead with eerie symbols and unsettling piles of ash.