The 100 - Season 4

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Echoes

1 - Echoes

Air Date: February 1, 2017

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

Heavy Lies the Crown

2 - Heavy Lies the Crown

Air Date: February 8, 2017

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

The Four Horsemen

3 - The Four Horsemen

Air Date: February 15, 2017

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

A Lie Guarded

4 - A Lie Guarded

Air Date: February 22, 2017

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.

The Tinder Box

5 - The Tinder Box

Air Date: March 1, 2017

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

We Will Rise

6 - We Will Rise

Air Date: March 15, 2017

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

Gimme Shelter

7 - Gimme Shelter

Air Date: March 22, 2017

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

God Complex

8 - God Complex

Air Date: March 29, 2017

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.

DNR

9 - DNR

Air Date: April 26, 2017

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

Die All, Die Merrily

10 - Die All, Die Merrily

Air Date: May 3, 2017

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

The Other Side

11 - The Other Side

Air Date: May 10, 2017

Clarke faces the consequences of her fateful choice.

The Chosen

12 - The Chosen

Air Date: May 17, 2017

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

Praimfaya

13 - Praimfaya

Air Date: May 24, 2017

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