Complete story — includes the ending
Lexa decides to kill Octavia to protect the secret that she and Clarke knew about the missile strike in advance. Clarke stops her and Lexa reveals that she has feelings for Clarke. Bellamy, Raven and Wick find a way to disable the acid fog; Bellamy soon discovers it was a trick but radio contact has been cut and he has no way to warn the others. Lexa agrees to trust Clarke and not hurt Octavia; Clarke notes there is more to life than survival. Lexa kisses Clarke who says that she isn't ready for a relationship. On Raven's signal that the fog is disabled, Clarke and Lexa lead the army to Mount Weather. Bellamy manages to destroy the acid fog system just as the mountain men are deploying it. Elsewhere, Jaha, Murphy, and crew continue to search for the City of Light. They take casualties crossing a minefield and reach a lake where a mysterious boat appears.
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