NYPD Detective Maria Saunders's ghost hunting vacation to Scotland takes a bizarre turn when she steps through a strange doorway in the ruins of a castle and finds herself thrust back in time. Confused and struggling to understand where and when she is, accusations of witchcraft follow her. The only one who believes her and seems to care about her plight is the handsome Laird Cameron.

While chaperoning a high school trip to the Scottish Highlands, Amy MacDougall descends into Inverlochy Castle dungeon. Deep in the crumbling ruins, she touches a magical rock and travels through time to 1307. Infiltrating the castle, Highlander Craig Cambel imprisons Amy. A MacDougall, she’s his clan’s sworn enemy. But when he’s forced to marry the fierce beauty, he surrenders to desire. Amy needs to return to the 21st century, but her feelings for Craig are growing stronger every day. Will the pull of centuries divide them, or can destiny bind them across the ages? 

Desperate times call for desperate measures, and no one is more desperate than Highlander Alasdair MacRae. His clan is on the verge of disaster thanks to continuous raids from the lying, thieving, murdering MacKenzies. Their latest strike has left Alasdair’s family on the precipice of starvation, and his brother badly wounded. The time has come to hit back, and what better blow to deliver than to kidnap his enemy’s daughter and use her to negotiate much-needed peace.

As a twenty-first century farmer, Kenzie MacMartin knows if she doesn't recover that ram that cost her a bundle, her dog won't be the only one howling in the Highlands. And to make matters worse, when she chases that sheep through a cave, she discovers a troupe of re-enactors mucking up her land with some kind of clan skirmish. The only upside is their handsome leader—until he kidnaps her.

New Orleans, 2020. Billionaire Rhys McCaim doesn’t believe for one second that his missing mother is a time traveler. Still, his father insists that she didn’t leave them willingly but was pulled through time to her true home in medieval Scotland. But when he and his three brothers test out an ancient time-traveling spell to appease their dying father and Rhys is catapulted to 13th-century Scotland, he can’t exactly deny it anymore. Suddenly, he’s a Highlander in a land on the verge of war.