13 Episodes · Premiered July 15, 2011 · Ended December 6, 2011
Following the death of the chief, the Biblical Plagues of Egypt fall upon the town. Meanwhile, Audrey and Nathan deal with a brunette woman claiming to be Audrey Parker who has appeared at the same time that Evidence Ryan, Duke's ex-wife, returns to Haven. After the Plagues are averted, Nathan discovers that the town's religious fanatic is starting a war.
A duplicate Audrey Parker arrives in Haven amid a series of bizarre events that are similar to Biblical plagues.
The residents of Haven have their worst fears come to life while Nathan's "trouble" seems to vanish.
The town's docks start attacking people while the other Audrey Parker probes Audrey's identity crisis.
Electrocutions occur across town, and one such event kills a community leader. Also: Nathan meets a man who is skilled at keeping Haven's secrets under wraps.
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.
A drowning case exposes a secretive family compound on the outskirts of Haven, from which children have disappeared under mysterious circumstances.
Violent crimes are traced back to a mild-mannered banker, who seems to have spawned a darker, unhinged copy of himself who is bent on doing things the original won't do for himself. While trying to determine the copy's ultimate mission, Audrey, Nathan and Duke step into a deadly trap.
A terrifying infection takes down a police officer at the Haven police station, prompting a lockdown that locks in Audrey and Nathan, who suspect that something other than an outbreak is at play.
A local teen goes missing in Haven's woods while a murderer is on the loose, and the search party finds evidence to support the existence of a supernatural creature in the forest.
Audrey and Nathan investigate murders in which the victims were mummified; a secret from Duke's past may affect his future.
The dead visit the living to resolve unfinished matters, and the reverend resurfaces to launch his endgame.
Christmas decorations pop up in Haven in July, and the town becomes a place where people can't leave and some have disappeared without a trace.Notes : This episode doesn't follow the previous episode. It's an extra episode, specially made for Christmas. According with the timeline, it should be viewed between 2x03 Love Machine and 2x04 Sparks and Recreation