Duke's roiling troubles and a new threat to Audrey force them each to seek the help of potentially dangerous allies.
Haven's heroes are torn over how to deal with an inquisitive CDC scientist, who could expose the secret of the troubles to the world, but may also hold the key to curing them forever.
When Audrey and other residents are overcome by a mysterious illness, the truth about the Troubles could be exposed to the outside world.
Audrey is forced to call in some outside help to cope with harsh new realities: she is no longer immune to the troubles, and Nathan may be lost forever.
Audrey and Nathan are reunited, but a paranormal Trouble could tear them apart forever.
Mara capitalizes on the fallout from the latest Trouble, forcing Duke and Nathan to make a desperate attempt to get Audrey back.
While Vince and Dave head to North Carolina to investigate Dave’s past, a body switching Trouble hits Haven.
Dwight and Nathan go head to head in what to do about Mara, and potentially end the Troubles forever.
Nathan makes a desperate attempt to recover Audrey, leaving Duke and Dwight to deal with a trouble that could burn Haven to the ground.
While Nathan tries to capture Mara, Duke may be the only person that can stop the trouble overtaking Haven.
Audrey, Nathan and Duke's victory over William feels hollow as they deal with the aftermath--Duke on death's door, Mara in control of Audrey's body, and a strange trouble supernaturally silencing citizens all over town.
Faced with the truth of who she once was, Audrey fights to remain herself as she tracks down William to sever their ethereal connection once and for all.
With William determined to convince Audrey of the truth behind her origins, a seemingly unstoppable curse is unleashed--and a host of entirely new Troubles may not be not far behind.
The ghost-hunting Darkside Seekers follow rumors of a monster from folklore to Haven, where their presence threatens to reveal the town's troubles to the entire world.
Audrey finds herself in a Haven where the Troubles have never existed, torn between returning Haven to "normal," or preserving this new reality for the sake of her loved ones.
Audrey discovers that the mysterious thugs from the barn have followed Lexie to Haven holding William as a hostage. She and William must uncover their sinister plan before the town tears itself apart.
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