A massive space fortress, the John A. Warden, goes dark after experiencing a bug infestation. A group of elite troopers, known as the "Alesia" crew, is sent to investigate and retrieve the ship. As they board the silent vessel, they discover gruesome scenes and remnants of battles, indicating a heavy bug assault. The tensions rise as they navigate the grim corridors, encountering swarms of terrifying insect alien enemies.

Amidst the chaos, the team discovers that the ship's commander, Captain Carmen Ibanez, and some survivors have fortified themselves against the ongoing threat. Captain Ibanez reveals the severity of the situation, sharing critical information about the bugs' aggressive new strategies. As the crew struggles to contain the infestation and ensure the survival of the remaining personnel, they face grueling decisions that test their resolve and loyalty. The mission's stakes are high, with the team experiencing relentless pursuit from the growing bug menace.