A callous cowboy’s life completely changes when he meets his worst enemy at the town’s cattle auction. Little does he know that his arch nemesis is also the key to unlocking his grumpy heart. When Theo Rolston buys a struggling cattle ranch, he has bigger fish to fry with his equally grouchy older brother Dean than dealing with the no-nonsense-know-it-all owner Hetty. But in order for everything to become a success, including inheriting a chunk of his father’s will, Theo must merge his ranch with the one owned by Hetty. This merge is a necessity not just for him but also for her… So, this grumpy cowboy must work with his nuisance rival.