Haven's heroes may have stiffened Mara's resolve against Audrey with their "Triple Exorcism," and the trio will have to work much harder reach Parker in the future.

Audrey's Return Announced, Problems With Nathan Teased For 'Haven'

Nathan (Lucas Bryant), Duke (Eric Balfour), and Dwight (Adam Copeland) teamed up at the end of "Much Ado About Mara" in order to bring Audrey's (Emily Rose) personality to the forefront, and while the men received some helpful information for their efforts, Mara now knows that Audrey has secretly been coming out to play.

Just like Nathan shooting Agent Howard, it seems good intentions have once again run awry.

What Really Happened In The Lighthouse? Producers Tease Upcoming Reveals On 'Haven'

"We are a show that largely lives in the world of unintended consequences," said writer Speed Weed, according to Revisiting Haven. "What do you do when you live in a magical world where you don't know the rules? It's not like a cop show...where you do things and have a pretty good probabilistic sense of what's going to happen. In Trouble land, you really don't. You don't have a handle on it. So you try your best option and the wrong thing happens."

Hopefully Nathan's next plan will work a little better - in "The Old Switcheroo: Part 2," he and Duke will make a "desperate and dangerous gamble" for Audrey Parker's life.

Find out more when Haven airs Fridays at 7 p.m. ET on Syfy. Click the video below to get a look at "The Old Switcheroo: Part 1."