All Available Season All Season Specials Nov, 2013 3 episodes 0.0 Season 1 Jan, 2013 10 episodes 7.5 Season 2 Jan, 2014 10 episodes 7.8 Season 3 Jan, 2015 10 episodes 8.1 It is now 1919 and the Great War is over. Season 4 Jan, 2016 10 episodes 8.1
