Walking boots. Check. Raincoat. Check. Emotional baggage? Check, check, check. Lydia Williams is used to putting on a smile and saying yes. So, when her friends beg her to join them on a cross-country hiking trip she agrees, even if she'd rather be crying into a pint of ice cream post-breakup. And post-job loss. Yeah, it's been a week. She's barely got her boots laced when Ren Hunter rocks up, her ex-best friend she's been desperately avoiding since he broke her heart. Ren knows he made the biggest mistake of his life. He's ready to grovel, but Lydia's walls are higher than any peak they're about to climb. So after his brother-slash-business partner shoots down his dream, he jumps at the chance for a break — and a chance to maybe, finally, win her back. Lydia is determined to keep her heart zipped up tight. But with days spent walking side by side and nights spent just inches apart, old feelings come creeping back, and in the middle of nowhere, they might just find their way back to each other.