Season 4

Season 413 episodes2017 7.6

Overview

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?

Season cast

Eliza Taylor
as Clarke Griffin

Bob Morley
as Bellamy Blake

Lindsey Morgan
as Raven Reyes

Marie Avgeropoulos
as Octavia Blake

Richard Harmon
as John Murphy

Luisa d'Oliveira
as Emori

Christopher Larkin
as Monty Green

Paige Turco
as Abigail Griffin

Devon Bostick
as Jasper Jordan

Isaiah Washington
as Thelonious Jaha

Henry Ian Cusick
as Marcus Kane

Zach McGowan
as Roan

Episodes

13 in this season

1. Echoes

7.2

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

2017-02-0143 min

2. Heavy Lies the Crown

7.4

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

2017-02-0842 min

3. The Four Horsemen

7.7

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

2017-02-1541 min

4. A Lie Guarded

7.6

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.

2017-02-2242 min

5. The Tinder Box

7.8

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

2017-03-0140 min

6. We Will Rise

7.6

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

2017-03-1542 min

7. Gimme Shelter

7.6

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

2017-03-2242 min

8. God Complex

7.6

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.

2017-03-2942 min

9. DNR

7.4

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

2017-04-2642 min

10. Die All, Die Merrily

7.5

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

2017-05-0342 min

11. The Other Side

7.5

Clarke faces the consequences of her fateful choice.

2017-05-1042 min

12. The Chosen

7.8

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

2017-05-1742 min

13. Praimfaya

8.3

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

2017-05-2441 min