Season 2
The second season picks up with the group still scattered and desperate to be reunited. As members of The 100 and new arrivals from the Ark stake out their place in a dangerous and beautiful new world, they are confronted with the physical peril and moral dilemmas that come with reforging a society.
Episodes
1. The 48
Clarke is still on her own in the white room, frantically attempting to make sense of her bizarre surroundings. Lincoln and Octavia's plan is ruined and an enemy returns.
2. Inclement Weather
Clarke wants answers from the President. Abby performs emergency surgery. Octavia will do anything to find Lincoln.
3. Reapercussions
After discovering a horrifying project in Mount Weather's medical ward, Clarke joins forces with an unexpected ally.
4. Many Happy Returns
Clarke ends up being betrayed by somebody that she trusted. Bellamy, Finn and Murphy attempt to save a stranger.
5. Human Trials
Kane takes part in a mission to make peace with the Grounders. Jasper decides to take part in a risky experiment. Lincoln enters a world of pain and President Dante Wallace issues a warning.
6. Fog of War
Tensions are running high between Clarke and Finn. Raven finds out that Mount Weather is interfering with their communication systems.
7. Long Into an Abyss
Bellamy is able to get Clarke to agree to accompany him to the drop ship. Dr. Tsing is in charge of a deadly experiment.
8. Spacewalker
Clarke comes back to Camp Jaha with some shocking news. Finn has to face the consequences of his actions.
9. Remember Me
Lexa and Clarke manage to make a deal.The newly created alliance is under threat. Monty comes up with a plan.
10. Survival of the Fittest
Lives are left in danger following the arrival of a new threat. Lincoln and Bellamy decide to break into Mount Weather.
11. Coup de Grâce
Lincoln and Bellamy's efforts to get into Mount Weather has some brutal consequences.
12. Rubicon
Clarke is faced with a difficult choice and Raven helps Bellamy navigate Mount Weather as Dr. Tsing begins to harvest the 47, while Jaha and Murphy encounter a stranger on their journey to the City of Light.
13. Resurrection
Clarke begins to question Lexa's leadership decisions and Indra continues to push Octavia. Meanwhile, at Mount Weather, Jasper steps up into the role of leader, and Cage throws Maya into a life threatening situation.
14. Bodyguard of Lies
Lexa and Clarke get into a heated discussion during battle preparations; Bellamy races against time.
15. Blood Must Have Blood (1)
Wick and Raven are faced with a setback. Maya and Jasper witness a terrible act.
16. Blood Must Have Blood (2)
Jaha makes a surprising move. Clarke gets help from an unexpected source. Lincoln seeks revenge.