In a small mountain community, teenager Camille, and Simon - who both died years earlier - suddenly re-appear at their homes. They have not aged, and they are completely unaware of their own deaths.
Simon approaches Adele, but Thomas finds out about his 'return'. In the meantime, Camille is unable to fit back into her family again.
Determined to come out of hiding and return to something resembling normal life, Camille invents a new identity for herself as 'cousin Alice'. Julie's dark past threatens to destroy her.
Camille's new identity as Alice is going well, but Léna's scar is growing and seemingly draining her of energy. Julie can no longer keep Victor under wraps and the police take him away.
The dead gradually come out into the open but are unable to resume their normal lives. Camille is rejected by Frédéric, and Simon is abruptly separated from Adèle and Chloe.
A power cut affects the town. Pierre forms a community around Camille, who is now seen as a prophet. Julie finds refuge at Laure's house with Victor, whose body is undergoing a strange transformation.
Various clans are starting to form in the town. Simon investigates the circumstances surrounding his first death, and Julie and Laure want to run away with Victor, but nobody seems able to leave.
Relations are strained between the living and the dead. The living deeply fear the dead, especially as a newer and more sinister wave of them enters the town.
Director Fabrice Gobert and the cast discuss Series One of the acclaimed French drama
The cast give us an insight into Series Two and remind us where we left off in Series One
Still pregnant with Simon's baby, Adèle faints and is taken to hospital, where the staff decide to induce labour. Richard Berg, an expert tasked with finding the causes of the flood, encounters Toni.
The Returned have been hiding out for months in a zone rendered inaccessible by the flooding. They are still holding Julie, Victor, Camille and Claire, who have grown used to their life as refugees.
Since the return of Victor's mother, Julie feels out of place. Camille grows closer to Virgil, a mysterious young Returnee, which is not to her mother's liking. Adèle begins to get used to her baby.
Berg and Jérôme visit the hamlet where Victor's family were murdered. Léna is reunited with her mother and sister. After the disappearance of her baby, Adèle comes under suspicion from the police.
Jérôme and Berg take in Audrey, who has managed to escape to the town from the Domaine. Simon tells Adèle they need to get their baby to a safe place. Victor senses that Julie is in imminent danger.
Sandrine has handed her daughter Audrey over to Pierre's men. Having taken refuge in the church, Adèle and Simon start to grow closer. Jérôme and Berg try to reach the Domaine via a roundabout route.
Jérôme has joined his wife and daughters in the Domaine, but the Returned prevent them from leaving. Lucy and the Horde are on the move again, while Julie goes to the Helping Hand to find Victor.
Camille understands that she can't stay with her loved ones any longer and must go back to the Returned. The Horde have dispersed but Lucy doubts that they can now return to where they came from.