Cage Wallace is the son of Dante Wallace, the President of Mount Weather. Cage believes that the Sky People should have their bone marrow harvested from them, because their bone marrow will get the Mountain Men to the ground by making them immune to radiation. However, his father, Dante, disagrees with killing the Sky People for their bone marrow. This disagreement leads to Cage overthrowing his father and becoming President of Mount Weather, because the majority of the Mountain Men support him since he promises to get them to the ground.