Tensions are high with a viral on the loose outside Project NOAH, as Guilder and Richards hurry to mobilize a search party. Amy volunteers to help in an unexpected way, causing friction between her and Brad. Lear tries to help a lucid Elizabeth understand the tough decisions he's made while at NOAH. A surprising connection between Sykes and Babcock is revealed.

• Justin Cronin
• Liz Heldens
• Marcos Siega

• Brianne Howey
• Zach Appelman
• Tyler Barnhardt