Catherine and Peter are co-parenting their newborn son, Paul, with the help of Elizabeth and trying to avoid their feelings for each other. When Paul goes missing, Peter and Catherine are driven together in their quest to find him.
Quest roles:
Charity Wakefield(Georgina Dymova), Alistair Green(Count Smolny), Ashwin Bolar(Doctor Smirnov), Freddie Fox(King Hugo), Dustin Demri-Burns(Voltaire), Julian Barratt(Doctor Vinodel), Anthony Cozens(Melnikoff), Grace Molony(Queen Agnes), Grace Chilton(Serf Khristina), Ali Ariaie(Raskolvy), Tom Gaskin(Shubin), Toto Bruin(Manya), Max Boast(Pugachev / Peter Double), Henry Meredith(Maxim), Jane Mahady(Katya Velcra), Tarik Badwan(Bandit 2), Keon Martial-Phillip(Soldier Vasily)