Season 4

The fight to survive has torn The 100 apart, turned them against each other, and taken the lives of their closest friends. Last season, our heroes found themselves at the epicenter of both the Grounder world and the struggle for Arkadia’s soul. Despite their best efforts, war appeared unavoidable, until a new, even more dangerous threat – one that had been quietly rising all along – exploded to the surface: ALIE, the A.I. that ended the world, offered relief from pain and eternal life in the “City of Light.” But as her ranks grew, it quickly became clear that she was building an army dedicated to controlling all sentient life on Earth. This was no longer a battle between warring factions; it was a fight for humanity itself. Now, a hard truth lands on the shoulders of those who remain. Will they go quietly into the night, or will they find hope and faith in each other, as they face their darkest chapter yet?

1. 

   1. Echoes

   2017-02-01 · 43m

   Clarke and her friends struggle with how to proceed after the fate of the world is revealed.

2. 

   2. Heavy Lies the Crown

   2017-02-08 · 42m

   The burden of leading weighs heavily upon Clarke and Bellamy when different challenges force them to determine who will live and die.

3. 

   3. The Four Horsemen

   2017-02-15 · 41m

   Jaha leads Clarke and Bellamy down a road to possible salvation while tensions rise in Arkadia and Polis.

4. 

   4. A Lie Guarded

   2017-02-22 · 42m

   Continued struggles with leadership and trust in Arkadia and Polis take violent turns while Abby leads a team to a distant location hoping to find answers.

5. 

   5. The Tinder Box

   2017-03-01 · 40m

   Clarke makes a desperate plea with a former allied force in an attempt to avoid a war and ensure the survival of her people.

6. 

   6. We Will Rise

   2017-03-15 · 42m

   Clarke and Roan are forced to work together when they are tasked to deliver a dangerous but crucial asset to Abby through enemy territories.

7. 

   7. Gimme Shelter

   2017-03-22 · 42m

   Clarke's arrival on the island quickly takes a turn for the worse. Meanwhile, Bellamy tries to avoid further tragedy in Arkadia.

8. 

   8. God Complex

   2017-03-29 · 42m

   After a disappointing discovery, Clarke and Abby question how far they're willing to go. Meanwhile, Jaha finds a lead to the mysterious Second Dawn.

9. 

   9. DNR

   2017-04-26 · 42m

   Jasper and Bellamy go on a quest. Meanwhile, Clarke struggles to keep the peace after word of Jaha's discovery spreads.

10. 

    10. Die All, Die Merrily

    2017-05-03 · 42m

    Octavia fights in the final battle for her people's survival, but not everyone is willing to play fair.

11. 

    11. The Other Side

    2017-05-10 · 42m

    Clarke faces the consequences of her fateful choice.

12. 

    12. The Chosen

    2017-05-17 · 42m

    Jaha and Kane disagree over how to handle their grim reality. Meanwhile, Clarke leads a group to save a friend.

13. 

    13. Praimfaya

    2017-05-24 · 41m

    It's a race against the end of the world as Praimfaya arrives forcing our heroes to make impossible decisions to ensure their survival.