Kevin's group make to the hospital in time to save Bryan. Kevin has a brutal encounter with his estranged brother, Mike.

Kevin's group founds an unlikely sanctuary in the psych ward. Tensions at the mall grow as food runs low. Nathalie and Father Romanov face off at the church.

Nathalie's influence over the remaining church parishioners continues to grow. At the mall Alex and Jay grow closer until Eve intervenes. Kevin and the group make a stop at Adrian's home where Kevin makes a shocking discovery.

Adrian arrives at the mall with somber news for Eve and Alex; meanwhile, the mall residents start to turn against them.

Tensions at the mall finally come to a head, and the group makes a discovery which could provide answers about the origins of the mist.