In Glasgow in 1928, Margaret Bannatyne is the sole heir of the wealthy and powerful shipyard owner William Bannatyne, who expects her to marry well and provide him with the grandson to inherit the business. But Margaret is determined to become a doctor, and this leads to complications in her father's plans.
Glasgow, 1928. Margaret Bannatyne lost both of her brothers in the Great War and is now the last remaining child of wealthy and powerful shipyard owner William Bannatyne. Without a male heir to carry on the family business, William expects his daughter to do her duty, marry well and provide him with a grandson to inherit his business. Margaret cares deeply for her father but she has ambitions of her own: after witnessing a horrific accident when she was sixteen, she's determined to become a doctor. Her father, convinced she will never practise medicine, permits Margaret to complete her training. But he doesn't count on her falling in love with Alasdair Morrison. Alasdair, a union man at the shipyard, has been a thorn in William's side for years, and he didn't become one of the richest men in Glasgow only for Alasdair to take it all away - even if it means destroying his only daughter's happiness by forcing her to make a heartbreaking and impossible choice . . .