Dizi Adı: Threshold
Bölüm Adı: The Crossing
Sezon/Bölüm: 1. Sezon 10. Bölüm
Yayın Tarihi: 11 Oca. 2006

Molly and Baylock realize the Threshold detainees must be moved immediately to a more secure facility in West Virginia when a prisoner attacks and infects a security guard, then tries to break himself and other infected prisoners out of their cells.