Bellamy and Kane take charge of a team that makes its way into Grounder territory to try and rescue Clarke.
Bellamy and Kane put themselves in danger to try and rescue Clarke. Abby thinks about opening Mount Weather as a medical facility.
Clarke finds it hard to make an important decision. Bellamy discovers that something is not what it seems.
Clarke finds out the identity of the person behind a devious plan. Kane attempts to keep the peace.
A new threat sees Clarke's hopes for peace being dashed. Raven is targeted.
As a show of good faith, King Roan sendsa gift to Lexa and Clarke. They know understan how the Ice Nation destroyed the Mountain. Clarke wants revenge but feels torn because of what she persuaded Lexa not to do against her people. Kane and Octavia work together to find out what Pike's team his doing.
Jaha and Alie continue to infect as many people as they can so that Alie can subvert them. Abby let Raven go back to work since she eels no pain anymore though her leg is still not working properly.
Jasper is starting to weaken and might take the pill to stop feeling the pain he feels about Maya's death.
Lexa attempts to maintain peace within the clans. Clarke finds out an unusual and game-changing truth.
Kane's efforts to deal with things peacefully could have to give way to some more drastic measures. Pike believes that somebody in Arkadia is leaking important information.