In the aftermath of Audrey's abduction and Nathan's struggle with Duke, alien phenomena plague Haven and a innkeeper's mother goes missing.
A group of unknown naked people go on a rampage in Haven and Audrey and Nathan try to figure out which Troubled individual is responsible... and how to stop them. Meanwhile, Duke learns the secret of the Hunter.
Victims in Haven are found with diseased organs next to their bodies... and their own healthy organs missing. While Nathan and Audrey investigate, they have to cope with a Boston police detective following upon a similar murder. Meanwhile, Duke must decide if he will accept his destiny, while Audrey decides what to do about her relationship with Nathan giving her coming disappearance.moreless
Haven is plagued by a mysterious series of ocean-related deaths... that take place on dry land. Meanwhile, the Teagues investigate Tommy's background, Duke insists on helping Nathan and Audrey with their investigation, and Nathan meets with one of the tattooed people.
A female vigilante appears in Haven and starts attacking criminals--including Duke. Meanwhile, Audrey tries to get a lead on the bolt-gun killer and Nathan vows to do anything to infiltrate the Guard.
Audrey and the others investigate a Troubled event which takes them to a supposedly haunted house... which traps them inside.
Audrey gets a lead on the location of the Colorado Kid and heads west with Duke to investigate. Meanwhile, Tommy and Nathan investigate several Troubled incidents involving the resurrection of the dead.
Audrey, Duke, and Tommy must find a wounded Noelle before sunset or lose their chance of bringing back Nathan from the dead. However, one of them doesn't want Noelle to succeed.
One of the Troubled sends Duke back in time to Haven in the 1950s and Audrey and Nathan must rescue their friend before he changes the past... and eliminates their present. When Nathan gets sent back as well, Audrey finds herself trapped in a new reality where Reverend Driscoll's men control the town and hunt the Troubled.moreless
Audrey and Nathan help a Troubled girl who the Guard wants for their own purposes. When Jordan reveals her true colors, the officers learn the truth about the Barn and Audrey's destiny... and who the real Bolt Gun Killer is.
As the time of her 27-year disappearance draws near, Audrey wakes up one morning and discovers that everyone else in Haven has gone into a coma... except for one man.
A string of murders at a high school reunion indicates the presence of a Troubled individual taking out their teenage frustrations.
The day is here, the barn has arrived. But Haven has still some surprises left. Some things come to a head, answers are given and new questions arise. The departure isn't going as planned and the Hunter storm shows no sign of letting up until Haven is wiped from the face of the earth.moreless