The 100: Season 4

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

The burden of leading weighs heavily upon Bellamy (Bob Morley) and Clarke (Eliza Taylor) when different challenges force them to determine who will live and die.

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

Clarke's decision on who gets to live causes tension in Arcadia. Jasper loses his sanity when the Black Rain falls. Bellamy and his friends face judgement for their crimes against the Ice Nation.

Clarke pleads with a former allied force to avoid a war and ensure her people's survival.

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

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

Clarke and Abby question how far they're willing to go when they make a disappointing discovery; Jaha finds a lead to the Second Dawn.

Clarke struggles to keep the peace after word of Jaha's discovery spreads.

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

Clarke faces the consequences of her fateful choice.

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

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