Boyd fears he may have finally run out of answers, as the residents of town prepare for the end; Tabitha clings to the belief that the children could be the key to their salvation.

Panic spreads through town as the residents face a chilling new threat to their survival; Jim realizes the magnitude of the mistake he made by enlisting Randall in his cause.

In their pursuit of the truth about the town, Jim and Randall hatch a dangerous plan; meanwhile, a new form of terror is brewing.

Boyd and Kristi seek to capitalize on the apparent death of the Nightmare Creature; Jim finds an unlikely ally in the volatile Randall.

Tensions run high at Colony House when word of the coming food shortage leaks out; a night at the clinic takes a terrifying turn.

Sara must face the music, as word of her return spreads through town; Victor and Jade strike an unlikely bargain.

As Boyd's condition grows more alarming, Sara's return to town puts him in a difficult position; Jim shares a troubling new theory about the town.

Kenny and Ellis make a grisly discovery out in the forest; Boyd struggles with the reality of what's happening to him.

A tense night in the diner as the residents and newcomers wait for sunrise; fear permeates the wreckage beneath the Matthews house, as Jim and Tom struggle to keep a panicked bus passenger quiet.

In Sheriff Boyd's absence, Donna and Kenny struggle to manage the chaos as a busload of unwitting newcomers arrives in town; Victor and Tabitha go on a chilling journey through the nightmarish labyrinth of tunnels beneath the town.