The show takes a look at the twists and turns of the first season.
Bellamy ends up waking up alone on the outskirts of Arcadia, unable to remember the events of the last seven days.
Bellamy and Sheriff Fred get a report that someone is living in Caleb Richard's old hunting shack. The pair fear that Caleb may have returned. Janine moves back home, in hope of saving her marriage.
Tom starts a new parish for the returned. Bellamy confesses as human bones are found in the river.
Margaret convinces Lucille to host a dinner celebrating the return of Jacob. But when unexpected guests turn up, the strains in the Langston family are clear to see. Bellamy continues researching the mysterious bones. Rachael receives news about the baby that unsettles her.
Margaret tries stopping Barbara from interfering with her relationship with Fred and Maggie. Bellamy struggles to keep his secret hidden, as he's forced to take desperate measures as the illness continues to spread.
Bellamy looks for help from a surprising source. Another disappearance results in a quest for answers.
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.
Anti-Returned rhetoric increases with Pastor Tom's church becoming a refuge.
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.