Nathan and Duke deal with the loss of Audrey... and the usurpation of her body by Mara, the evil being partially responsible for the creation of Haven's Troubles.
-- Forever Goodnight
Nathan and Dwight realize the source of the new Trouble besieging Haven's residents, and take steps to stop it. Meanwhile, Mara recruits Vickie to break through the thinny.
Rather than hand Mara over to Dwight and put her life at risk, Nathan takes her into hiding. Meanwhile, a friend of Duke's suffers from a Trouble and he realizes that Mara may be his only chance of saving her.
Songs: Jody Brian Quartet -- Drifting Home to You
As Nathan and Duke try to convince Dwight that Audrey still exists inside of Mara, a series of strange and lethal phenomena hit the area. Meanwhile, Vince and Dave undergo counseling to learn what happened in the cave.
Vince goes behind David's back to travel to North Carolina and investigate the circumstances behind his adoption. However, the two brothers suddenly discover that they've switched bodies. Meanwhile, Nathan comes up with a new plan to bring Audrey back even though Mara claims to have killed her.
Duke's body threatens to explode from the Troubles within, and Nathan is unable to focus enough to release him. To save him and Duke, they have to reunite the brothers and have them undo their body-switching Trouble.