Season 4
13 episodes · Feb 1, 2017
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?
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S4E1Echoes
Feb 1, 201743mClarke and her friends struggle with how to proceed after the fate of the world is revealed.
S4E2Heavy Lies the Crown
Feb 8, 201742mThe burden of leading weighs heavily upon Clarke and Bellamy when different challenges force them to determine who will live and die.
S4E3The Four Horsemen
Feb 15, 201741mJaha leads Clarke and Bellamy down a road to possible salvation while tensions rise in Arkadia and Polis.
S4E4A Lie Guarded
Feb 22, 201742mContinued 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.
S4E5The Tinder Box
Mar 1, 201740mClarke makes a desperate plea with a former allied force in an attempt to avoid a war and ensure the survival of her people.
S4E6We Will Rise
Mar 15, 201742mClarke and Roan are forced to work together when they are tasked to deliver a dangerous but crucial asset to Abby through enemy territories.
S4E7Gimme Shelter
Mar 22, 201742mClarke's arrival on the island quickly takes a turn for the worse. Meanwhile, Bellamy tries to avoid further tragedy in Arkadia.
S4E8God Complex
Mar 29, 201742mAfter a disappointing discovery, Clarke and Abby question how far they're willing to go. Meanwhile, Jaha finds a lead to the mysterious Second Dawn.
S4E9DNR
Apr 26, 201742mJasper and Bellamy go on a quest. Meanwhile, Clarke struggles to keep the peace after word of Jaha's discovery spreads.
S4E10Die All, Die Merrily
May 3, 201742mOctavia fights in the final battle for her people's survival, but not everyone is willing to play fair.
S4E12The Chosen
May 17, 201742mJaha and Kane disagree over how to handle their grim reality. Meanwhile, Clarke leads a group to save a friend.
S4E13Praimfaya
May 24, 201741mIt's a race against the end of the world as Praimfaya arrives forcing our heroes to make impossible decisions to ensure their survival.