Genevieve Tierney moves to Lake Tahoe after college, determined to go it alone after being betrayed by her boyfriend. Working at a casino and avoiding cheating jerks seems like a good plan, until she meets the one guy tempting enough to drag her back down. Lewis Sallee is six and a half feet of perfectly sculpted mountain man who threatens her play-it-safe approach and awakens a sex drive she never knew she had. Although Lewis is in a complicated relationship with one of the most beautiful women Gen has ever seen, she can’t seem to control her attraction to him. To boost her confidence, Gen steps out of her comfort zone and signs up for the Alpine Mudder, a gritty endurance race. But as she prepares for the biggest physical challenge of her life, her emotional strength is pushed to its limits after she accepts Lewis’s help in training. He tests her willpower and has her fighting her body’s response to him—with her mind and heart not far behind.