Episode Detail: The Crossing - Threshold
Three of the alien prisoners being held at the Threshold command center escape, which leads Molly to formulate a plan to move five infected detainees to a more secure facility in the mountains of West Virginia. Unfortunately, the truck carrying them is ambushed. Back at the lab, Molly's team learns a disturbing new way that people are being infected and a key member of the group shows signs of possible infection.
Episodes: Threshold - 14 total Episodes