"The Crown" released a new trailer Monday that teases tension between Queen Elizabeth and Prince Philip.
The season also follows Princess Margaret (Vanessa Kirby) as she moves on from her ill-fated romance with Peter Townsend (Ben Miles).
The princess is shown with her eventual husband, photographer Antony Armstrong-Jones (Matthew Goode).
Rolling Stone reported Season 2 takes place from 1956 to 1963, a period of great change for the British monarchy.
The season will explore the Suez Crisis and the downfall of Prime Minister Harold Macmillan.
"The Crown" is based on series creator Peter Morgan's film "The Queen" and play "The Audience."
Season 2 will premiere Dec. 8 on Netflix, with Olivia Colman to take over as Queen Elizabeth when Seasons 3 and 4 jump forward in time.