In a near-future, post-apocalyptic world, humans have successfully repelled an alien invasion known as the Heavies. However, pockets of resistance still exist, with these hostile extraterrestrials hiding in remote areas. A documentary crew is embedded with Outpost 37, a military unit tasked with eliminating any lingering alien threats in one such desolate region. The soldiers at Outpost 37, a mix of battle-hardened veterans and fresh recruits, are constantly on guard as they face both direct attacks from Heavies and perilous environmental conditions.

As tensions rise within the outpost, the crew captures the day-to-day struggles and evolving camaraderie among the soldiers. While the team fights to secure their position and uncover the aliens' elusive plans, they start observing strange phenomena that suggest the threat from the Heavies might be far from over. With mounting suspicions and increasing danger, the soldiers and the documentary crew are pushed to their limits, revealing underlying truths about war, duty, and survival that transcend the immediate danger they face.