Plot summary
Chancellor Jaha discovers a baby left on the Ark and plans to take him to Earth. While a suspicious Clarke confronts Dante, Octavia is healed by Nyko, a friend of Lincoln's. Octavia holds Nyko hostage and offers him to Indra, the village leader, to get Lincoln back. Abby performs surgery on Raven to remove the bullet from her spine without anaesthesia. Jaha learns that the baby is a hallucination of his son caused by oxygen deprivation, who convinces him to continue living his life; Jaha crash lands a nuclear missile carrying him to Earth. During the prisoner exchange, Octavia is attacked by the reapers, who capture Lincoln. Clarke learns that Anya — the leader of the grounders — is being held in Mount Weather with other prisoners being forced to supply blood to heal the mountain residents.
Credits
Adapted from Wikipedia contributors, List of The 100 episodes. HTML formatting and reference markers removed.