Roan (Ice Nation) and Octavia (Skaikru) struggle to maintain a fragile peace between the 13 clans as resources dwindle and the end of the world approaches.
The series continues to ask, "How far are you willing to go to save your people?" The 100 - Season 4
Much of the season involves the search for a viable "Lifeboat." This includes the repair of Arkadia, the discovery of a hidden Second Dawn bunker, and the high-risk experiments with "Nightblood" to create radiation immunity. Roan (Ice Nation) and Octavia (Skaikru) struggle to
