A Death in Diamonds

1957 - Young Queen Elizabeth II is finding her way in a challenging world as the United Kingdom must adjust to having neither an empire nor a set place in post-war Europe. As she travels the world to try and build bridges, the Queen is advised by the 'men in moustaches', as Philip calls them - her father's old courtiers, who may or may not have her best interests at heart. One of them is trying to sabotage her: that much she is sure of.