Never, ever call Four Sons! Caila McKenna understands the rule. A truck accident and her brother's life held in the balance, force her to make the call to the large towing company for help. John Thunder, the owner of Four Sons agrees, but assistance comes at an extremely high price. It seems that all the strong, confident, Native American wants from a McKenna is money and pain.

John gathers his brothers for a rescue and recovery. A forty year old debt would finally be settled and the McKenna's would pay. John's proud of his reputation for being hard but fair, and can't seem to balance the two when dealing with Caila. Work boots and a man's shirt don't hide the intriguing woman beneath. Simple negotiations over a black and white contract suddenly seem gray as John tries to remember all the reasons he should keep dealings with Caila strictly business.