Meeting your in-laws for the first time can be a nerve-racking experience. But what if your in-laws were the Royal Family?

This exclusive documentary shows us what really happened when the Middletons met the Monarchy. We get an inside look at what it's like to suddenly find yourself and family intimately within the royal orbit, the rules, navigating within the Royal Family itself. The warnings, coaching and tensions that entering this world throws up. What happens when the Royals take you to their heart or take instant dislike - is it a dream or nightmare?