The animals act strangely at the Chenoweths' farm; the family and neighbors search for missing Arlo.
With no cell service or electricity, the Chenoweths and their neighbors desperately seek help.
Ruben and James seek help from the Navarros; Arlo reveals the truth about what's going on.
James and Ruben are held captive at the farm; Arlo, Meryl and Nicholas meet a mysterious man.
Travis recounts how he took refuge at the Navarro farm, revealing the danger to James' family.
James and Ruben return with a wounded McNab; James realizes a chilling truth about his mother.
Suspicion and paranoia reign within the group; Donald joins Ruben to settle unfinished business.
After discovering who's after Arlo, Maggie and James resort to the unthinkable to save their family.