FBI Agent Audrey Parker goes to the small town of Haven, Maine, to track down an escaped prisoner. When he turns up dead, the local authorities are ready to dismiss it as a freak accident. However, the bizarre circumstances of the death, strange storms, and spreading cracks in the ground make Audrey think there's more to Haven than meets the eye. With the aid of local police officer Nathan Wuornos, Audrey vows to find out how the prisoner really died.

Butterflies are a foreshadowing of doom when they appear at the scenes of several bizarre events, all of which target a hostile reverend, his daughter, and her foster son. Meanwhile, Audrey stays in Haven to determine the identity of her lookalike in the Colorado Kid murder photo.

A doctor at a psychiatric facility inadvertently exposes himself to a drug that causes him to go temporarily insane, but seemingly cures three patients. Audrey and Nathan help recover the patients. When all of the afflicted revert to their original mental states, they realize that something more is going on.

Audrey and Nathan look into an epidemic that threatens the town's livestock and fields, and is centered around two brothers and their complicated relationship. Meanwhile, the Teagues brother offer Audrey some fashion tips.

Two men turn up dead, the victims of accelerated aging and decomposition. Nathan and Audrey trace the dead men and discover that their common connection is that they were both at the Grey Gull, Duke Crocker's new bar... and Duke is the next target.

Local hunt club members are the victims of wild animal attacks, but Emily and Nathan soon realize that a Troubled human is responsible

A woman manifests the Troubled ability to make whatever she sketches become real.

When two medical staff members at a cancer clinic are killed, stabbed through the heart, Audrey and Nathan investigate and realize that a shadow creature, a "Dark Man," is responsible.

Audrey's new Haven friends surprise her at an isolated local hotel and give her a birthday party. However, they soon discover that their host is a chameleon, a shapeshifter influenced by the Troubles to start killing and taking on new forms. Soon no one knows who is who, or who can be trusted.

While Audrey investigates Duke's connection to the Colorado Kid, she comes across a high school guidance counselor who appears to be responsible for the fiery deaths of two people. However, the counselor insists that she tried to prevent the deaths... and there are more to come.

Two crooks hijack Duke's ship in an attempt to locate a smuggled box, and end up capturing Audrey, her visiting boss, Duke, and Julia.

A dead man's family is scorned for the death of the crew he killed in a boating accident, and their house is plagued by strange phenomenon. While Audrey investigates the home, Nathan is forced to pose as a criminal to convince Duke to share what he knows about the accident.

A former Haven resident returns and wants the life that he claims Chief Wournos took from him. Meanwhile, more cracks spread throughout Haven, Audrey realizes who she really is, Nathan learns the truth about his father, and Duke and Julia pursue the mystery of the tattooed killers.

In the aftermath of Chief Wournos' death, Nathan and Audrey deal with a woman claiming to be Audrey, the ten Plagues of Egypt, and Reverend Driscoll's attempts to take control of Haven.

A girl who can project a person's worse fear sets off a panic in Haven. As Nathan and Audrey investigate, they discover that another Troubled person is involved, one who needs the woman's affliction... and Nathan's. Meanwhile, Audrey Two tries to track down Audrey's Agent Howard.

Machines come to life and start killing people in Haven. While Audrey and Nathan try to deal with the new crisis, Audrey Two investigates the mystery of Agent Howard.

A Troubled individual with electrical powers threatens the entire town. Meanwhile, Duke tries to find the secret that will let him ward off his tattooed killer.

The children of two feuding families attempt to marry. However, their wedding is disrupted when the plant life animates and attacks everyone... including Audrey, Chris, Duke, and Evi. Meanwhile, Nathan tries to come to terms with Audrey's new relationship with Chris.

Audrey discovers that the same five hours keep repeating over and over... and each time before resetting, someone close to her dies in a car accident.

An apparent drowning suicide turns up on a Haven beach, and Audrey and Nathan soon discover that he is tied to an enigmatic family compound, and that the family has abducted a local woman's child. Meanwhile, Duke learns that the family is connected to the tattooed man.

A straight-laced banker hides a double life... literally. Meanwhile, Driscoll continues his plan to remove Nathan from office and Duke helps a runaway.

An unidentified Troubled individual unleashes a virulent plague in the station house. The new chief of police orders a quarantine, trapping Audrey, Nathan, Duke, Evi, and Chris inside.

A teen seemingly dies at the hands of a serial killer, but an investigation soon reveals that the killer is dead and the teen may be Troubled. Nathan and Audrey search the woods for the boy, but soon discover they have unwanted assistance from Driscoll... and Duke Crocker.

Two mummification deaths increase the town's tensions in the aftermath of Audrey's shooting of Reverend Driscoll. While Nathan decides which side he will support, the Troubled or the unafflicted, Audrey finally locates Lucy Ripley and Duke joins forces with Dwight to learn his father's secrets.

As the civil war between normals and Troubled in Haven comes to a head, Nathan and Duke are visited by the ghosts of their fathers... and Reverend Driscoll, who plans to eliminate the Troubled once and for all with the help of someone close to Audrey.

After a surfer is cut in half in the middle of the harbor, Audrey soon realizes that everyone is celebrating Christmas... in July, with no idea that anything unusual is going on. Things become more sinister when people disappear and no one but Audrey can remember they ever existed.

While Nathan and Duke set aside their differences and try to find Audrey, a Troubled individual is plagued by alien abductors.

Naked savages wander the streets of Haven. While Nathan and Audrey try to determine who they are and where they've come from, Duke convinces the Teagues to let him see the old newspapers and determine who the mysterious "Hunter" is and how he's connected to Audrey.

People in Haven turn up with diseased organs next to their bodies, and their own healthy organs removed from via their mouths. Nathan and Audrey get an assist from a Boston police detective working a similar case.

Audrey and Nathan investigate a series of strange incidents where the only common factor is a missing woman. Meanwhile, Duke insists on tailing along on the officers' investigation, while the Teagues do some digging on Tommy's background.

A female vigilante stalks Haven's criminals, rendering poetic justice. She sets her eyes on Duke as her next target and Audrey tries to protect her friend. Meanwhile, Nathan grows closer to Jordan as he attempts to infiltrate the Guard, and Audrey learns more about the bolt-gun killer that is stalking her.

After a girl loses her boyfriend in Haven's reputed haunted house, she seeks out Audrey for help. Audrey and her friends go there but soon find that they're trapped by an unseen malevolent. force.

While Audrey and Duke track down the Colorado Kid's parents, Nathan and Tommy investigate Troubled incidents involving the resurrection of dead for payment.

After Nathan is killed, Audrey must find the missing Noelle, who can resurrect the dead. Meanwhile, the Teagues realizes that the Bolt Gun Killer has tricked them and track the murderer to his real target.

A Troubled war veteran sends Duke and Nathan back to 1955. While Duke tries to stop his grandfather from killing Sarah, Audrey's previous incarnation, Nathan falls in love with her. Meanwhile, in the present Audrey tries to deal with an altered timeline where Driscoll's men have taken over the town.

A girl arrives in Haven with a powerful Trouble, and the Guard try to obtain her so that they can use her against Nathan... and through him, to Audrey.

Audrey awakens to find Haven deserted and the town’s residents asleep-- except for one man.

After Audrey discovers who the skinwalker really is, she and Nathan investigate two mysterious deaths at a high school reunion. Meanwhile, Duke gets a new lease on life and Dave makes a deal to learn about the barn.

As the meteor storm bombards Haven, Audrey must make an impossible choice: leave with the barn and disappear for 27 years, stay and let the town be destroyed, or kill her son to stop the Troubles forever. Meanwhile, Arla and James are reunited, and the Teagues have a falling out.

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