The 35 year old, unmarried Empress Elizabeth is childless and unlikely to produce an heir. She appoints her nephew Peter Fedorovich as the heir to the Russian throne, intending to marry him to a princess and take any future son to educate him to become the future emperor. German princess Sophie Friederike Aguste arrives in Saint Petersburg as a potential wife to the prince, and in hopes to find happiness in the distand and foreign land. (thetvdb.com)