John Murphy returns claiming to have been held captive by the Grounders and Clarke and Bellamy have different ideas on how to handle his return.

Clarke and Finn attempt to broker peace with the Grounders while others prepare for battle. Meanwhile, tragedy strikes the Unity Day celebration.

In The 100 S01E08, Some of the 100 lose touch with reality after eating a hallucinogen. One of them is tasked to kill, and Diana Sydney’s treachery is revealed.

The 100 S01E07 is about how Abby guides Clarke through a dangerous procedure while Diana Sydney takes her place as Chancellor. Kane agonizes over his recent decision.

Bellamy and his crew run into Grounder territory as they search for Octavia while Raven notices the deep connection between Finn and Clarke.

After exposing Kane’s plan to reduce the population of the Ark, Abby and Jaha realize at least some of the 100 must still be alive.

After a shocking death, Clarke and Finn grow closer. Bellamy must keep the group from turning on one another and Abby takes a huge risk.