Preacher James and his congregation head to the Langston house to stop the birth of Rachael's baby.
Preacher James returns, bringing a strange energy to the town; detained at the government facility, Margaret tries to keep to herself; something terrible happens to Henry.
Jacob and Margaret go missing during a violent storm that knocks out the power; another visitor arrives.
The death a beloved member of the community leaves Arcadians in mourning whilst a cure for the virus is provided by stem cells from Rachael's baby.
Anti-Returned rhetoric increases with Pastor Tom's church becoming a refuge.
Rachael refuses to accept any treatment for the virus as she is concerned for the safety of her unborn child. Elaine's brother Ray comes down with the disease.
Bellamy looks for help from a surprising source. Another disappearance results in a quest for answers.
Tom starts a new parish for the returned. Bellamy confesses as human bones are found in the river.