Ragnar was in a vulnerable place, physically and emotionally, at the end of last season, where do we find him when Season 4 begins? A large part of this season is about identity and people trying to find out who they are and what they are and what they should be doing.
A young surgeon with autism and Savant syndrome relocates from a quiet country life to join a prestigious hospital's surgical unit. The question will arise: can a person who doesn't have the ability to relate to people actually save their lives?
The story of Dick Cheney, an unassuming bureaucratic Washington insider, who quietly wielded immense power as Vice President to George W. Bush, reshaping the country and the globe in ways that we still feel today.