Audrey is held hostage by a mysterious man who will do anything to learn the whereabouts of the Colorado Kid. At the same time, Nathan and Duke work to solve the mystery of the strange UFO-related occurrences afflicting Haven.
A group of inarticulate half-naked men run amok in Haven and kidnap a small boy. To bring him safely home, his father must first learn the meaning of kindness and find the spirit of humanity.
A Boston cop arrives in Haven, linking the town's latest stiff to a string of similar cases, leading Audrey and Nathan to believe that a "troubled" killer may be harvesting organs.
As ocean-related deaths plague Haven, Audrey races to find a connection between the victims, knowing that, as sure as the tide rises, her time to solve the mystery is running out.
An unstoppable woman stalks Haven's criminals, but her particular brand of justice is neither blind nor fair, and Audrey must stop her before she strikes down every wrongdoer in town--including Duke.
With Audrey and Duke following a lead in Colorado, Nathan and Tommy must deal with the latest "trouble" on their own when they discover someone in town has the ability to raise the dead.
Duke and Nathan are sent back in time to 1955, and Audrey is the only one who realizes that their actions are having serious consequences in present-day Haven.
The arrival of a girl who possesses a Trouble that lets her control people's minds sparks revelations that suggest that the intents of the Guard may not be as charitable as they seem.
Audrey must race against the clock when she finds every person in Haven has fallen asleep and will die if she can't wake them. The only other conscious person in Haven has lost his memory and can't help her solve the puzzle.
