Accusations start flying and truths come to light in the aftermath of a tragedy; Victor struggles to recover long-buried memories about the town's past; Julie and Ethan search for answers about the mysterious ruins in the woods.
Boyd is forced to make a tough decision when newcomers arrive in town at nightfall; Victor unearths memories from the past in the hopes of finding answers.
Boyd struggles to find a path forward as the town says farewell to one of their own. Fatima's health takes a turn for the worse, while Tabitha finds help from an unlikely ally.
Kenny leads a group into the forest in search of food as Donna and Ellis try to talk Boyd out of a dangerous plan. Meanwhile, Tabitha makes a mind-bending discovery.
The Matthews' family road trip takes a horrifying turn when they are detoured to a small town from which they cannot leave. When their family RV crashes, Sheriff Boyd Stevens and other residents rush to save them before the sun goes down.
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.
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.
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.
