Luke Blackthorne is an 18-year-old from a Leeds council estate who accepts a one-year placement at Blackthorne Hall Estate for work experience and etiquette training after ageing out of foster care. What begins as a chance opportunity slowly draws him into the world of Ashcombe-on-Wold, a wealthy Cotswold market town dominated by aristocrats, landowners, horse breeders, CEOs, politicians, and old-money families.

Unknown to Luke, he is connected to one of the most powerful families in the region:

The Blackthornes.