Duke is ejected from the barn and rescued by a young woman; Audrey is missing and the Troubles are worse than ever.
Nathan tries to balance his responsibilities to Haven with his search for Audrey. While Duke tries to reassure Jennifer and deal with his older brother, he and Nathan investigate the case of a Troubled person who is incinerating people into ash. And in Texas, Audrey learns something about who she is.
While Nathan and Dwight investigate a series of cuddles involving exsanguinated bodies, Jennifer starts hearing the voices again and Dave and Vince take a trip to New Hampshire. Meanwhile, William tells Audrey what the bar really is, and why she must leave.
While Nathan and Dwight investigate a series of inexplicable child abductions, Duke helps Jennifer focus so that she can learn more about Audrey's location. Meanwhile, in the Bar, William tells Audrey how she can escape before the place between realities implodes.
Duke and Vince come to an arrangement on a way tohug Nathan and end the Troubles, when Audrey comes back with no memory of herself or her feelings for Nathan. Meanwhile, a Troubled person leaves a trail of mysterious sleepings.
When people start simultaneously turning hard as stone, Nathan, Duke, and Lexie find themselves in a race against time to find the Troubled person responsible.
A new Trouble emerges when people suffer from the injuries caused in their dreams... and some of the injuries are fatal. Meanwhile, Duke searches for his brother Wade and the Teagues discover a mystery behind Jennifer's adoption.
The pressure's on when a deadly deep sea Trouble threatens to crush the entire town and everything Lexie and Nathan think they know about the Troubles. Meanwhile, Nathan and Duke both come to decisions about their lives, and the Teagues find a journal describing an ancient Indian legend.
Audrey discovers that the mysterious thugs from the Barn have followed Lexie to Haven and are holding William as a hostage. She and William must uncover their sinister plan before the town tears itself apart.
The Seekers follow a monster to Haven; their presence threatens to reveal the town's Troubles to the entire world.
A pair of conspiracy theorists, the Darkside Seekers, come to Haven to investigate a cuddle and get more than they bargain for when they uncover the Troubles. Meanwhile, Audrey and Nathan deal with the aftermath of William's revelations.
William is determined to convince Audrey of the truth behind her origins; a seemingly unstoppable curse is unleashed.
Audrey and Nathan try to come up with a way to capture William, while Audrey resists the pull of her past self. Meanwhile, Duke begins suffering from a mysterious ailment and the group learns who the fourth person of the figure is.