When a deadly series of electrocutions occur around town, Audrey and Nathan investigate the cause

A wedding at an isolated estate turns deadly for the guests when the site becomes sealed off and something attacks from within.

A single day keeps repeating for Audrey, who finds a deadly accident linked to the phenomenon.

When a Troubled individual unleashes a rotting plague inside the police station, the new Chief orders a quarantine... trapping Audrey and the others inside. Meanwhile, Duke confronts Evi about her betrayal of him.

When Audrey and dozens of Haven citizens are affected by a mysterious illness, the symptoms threaten to expose Haven’s secrets to a dangerous newcomer.

Nathan struggles to return to Haven as Dwight reconsiders his future in the series finale, which also finds Audrey coming to a terrifying decision about how she might finally save the town from Croatoan.