Complete story — includes the ending
In a fight to the death for the right to the throne, Queen Nia chooses her son Prince Roan to fight Lexa. At Arkadia, Bellamy, wracked with guilt, resigns from the guard. Monty and Jasper leave camp, and Monty confronts his grieving friend. Pike publicly confronts Kane and Abby, questioning them about the grounder army surrounding Arkadia, sent as protection by Lexa. Pike convinces Bellamy to supply him with guns and help massacre the grounder army. Lincoln, Abby, and Kane stop them at the last minute. Pike's name is then suggested for inclusion on the ballot for the upcoming Chancellor vote. Back at Polis, Lexa beats Roan but kills Nia instead of him, and pronounces Roan the king of Ice Nation. Back at Arkadia, Pike is the elected Chancellor. Pike then frees himself, his supporters, and Bellamy, and they leave to finish what they started.
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, List of The 100 episodes. HTML formatting and reference markers removed. · Content license