Reagan Landry is months away from college graduation, but instead of excitement, she's frozen by the fear of letting go — of her ex-boyfriend, of the comfortable life she created for herself in Portland, of the years-long search for her older sister who abandoned her as a homeless teen. When she's finally forced to decide what's next, Reagan is met with another complication — her ex's best friend, Noah Burke, who seems determined that she embraces what could be instead of what has been.

Drunkenly hooking up with his best friend's ex, Reagan, is a mistake, but being secretly in love with her is so much worse when things seem one-sided. A disenchanted frat boy about to fail out of college, Noah has been living out someone else's dream after a horrible accident five years earlier. Just when he thinks he's lost any chance he has with Reagan, she surprises him by agreeing to spend the summer together at his family's ranch in Montana.

And suddenly what started out as a complication between them becomes serious...until the past starts ripping apart their future.