Montana - When Molly learns that her grandfather is ill, she packs up her sons without a second thought and makes the long drive home to Sweetgrass, Montana. But she immediately has questions about the stranger working on her grandfather's ranch. Just who is Sam Dakota? Why doesn't the sheriff trust him? Despite everything, Molly can't deny her attraction to Sam - until her ailing grandfather tries to push them into marriage. Some borders aren't so easy to cross... Return to Star Valley - Ten years ago, Cassidy Harte had stood at the altar waiting for Zach Slater. And when he didn't show up - and was said to have disappeared with her brother's flirtatious wife - she did the only thing she could do. Held her head up high. Helped raise her motherless niece. And swore never to get involved with a man again. And then back into her life walked Zach - with an 'I'm sorry' on his lips, an explanation she refused to hear and the vow that he would make her his once again. And this was one vow he was determined to keep.