The 100

Season 4

TV-14

93%74%

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?

Where to Watch Season 4

13 Episodes

Echoes
E1
EchoesIn the aftermath of the chaos done by ALLIE, Clarke struggles with the decision over telling the world of the impending nuclear apocalypse. The Grounders struggle with each other and Echo uses the chaos as a chance to declare war on the Sky People.
Heavy Lies the Crown
E2
Heavy Lies the CrownThe burden of leading weighs heavily upon Clarke and Bellamy when different challenges force them to determine who will live and die.
The Four Horsemen
E3
The Four HorsemenJaha leads Clarke and Bellamy down a road to possible salvation while tensions rise in Arkadia and Polis.
A Lie Guarded
E4
A Lie GuardedClarke's decision on who should live and die causes tension in Arkadia. Abby tries to figure out how to obtain Luna's immunity. Bellamy and his friends face judgement from the Ice Nation. Jasper finally loses himself when the Black Rain comes.
The Tinder Box
E5
The Tinder BoxClarke 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
E6
We Will RiseClarke 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
E7
Gimme ShelterAbby desperately tries to make the cure, but it requires her to make an ultimate decision. Raven and Abby's health are slowly deteriorating. Arkadia is thrown into panic when the Black Rain finally comes. Octavia roams alone in her pain and grief.
God Complex
E8
God ComplexAfter 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
E9
DNRJasper and Bellamy go on a quest. Meanwhile, Clarke struggles to keep the peace after word of Jaha's discovery spreads.
Die All, Die Merrily
E10
Die All, Die MerrilyOctavia fights in the final battle for her people's survival, but not everyone is willing to play fair.
The Other Side
E11
The Other SideClarke faces the consequences of her fateful choice.
The Chosen
E12
The ChosenJaha and Kane disagree over how to handle their grim reality. Meanwhile, Clarke leads a group to save a friend.
Praimfaya
E13
PraimfayaIt's a race against the end of the world as Praimfaya arrives forcing our heroes to make impossible decisions to ensure their survival.