Cody Walsh leaves Arkansas for California...Lillie Ellis leaves New York to accept a post as a schoolteacher on the frontier near a small homestead she just inherited from her uncle...Cody rescues Lillie after a chance encounter in Independence, Missouri. Their destinies and desires become entwined as they face the perils of the untamed West. Despite their differences, they discover that love’s uncharted frontier is not for the weak in spirit or the faint of heart.

The isolated, sleepy little village of Timber Falls—built on the bend of a swift mountain river—swells during the summer months as tourists flock to town to run the river, lured there by the Class IV and Class V rapids. A gruesome murder of a college student—a river rat—brings the FBI to town. Lynn Carter, a disgraced LAPD detective, was offered an out—a position on a team of unorthodox FBI agents. When her commander sent her to Timber Falls—a town by only the stretch of the imagination—she had no idea she would find her peace there. No idea she might find love.

Detective Jo Shaw has it all worked out. She’s good at her job, she has loads of mates, and she likes being single. She doesn’t need complications, but an emergency call to the stabbing of a young woman brings plenty of those. Jo has to risk her career to save the woman’s life, and a bad night gets worse when the trauma surgeon turns out to be Isla Munro, Jo’s only real love, who walked out on her 15 years ago and never came back.

Corey Durand doesn’t trust easily, and the rumors surrounding the devastating end of her last relationship have only just died down. All she wants is peace and quiet to run her ranch. But in moves her feisty next-door neighbor, Brin, and everything gets thrown into chaos. Brin’s younger, vibrant, and full of sass. Her five-year-old autistic niece loves Corey and the ranch, and Corey hasn’t figured out how to befriend the little girl while avoiding her aunt.

Captain Sabine Fleischer is a skilled and dedicated US Army surgeon deployed to a combat hospital in Afghanistan. She is also one of the thousands of troops who are forced to serve in silence because of the military's anti-gay policy of "Don't Ask, Don't Tell (DADT)". Usually driven and focused, Sabine finds that battles raging both inside and outside are making it more and more difficult for her to deal with her emotions. Dealing with loss and mortality, lack of privacy, sleep deprivation, loneliness, and the isolation forced on her by Don't Ask, Don't Tell are all taking their toll.