100 years in the future, when the Earth has been abandoned due to radioactivity, the last surviving humans live on an ark orbiting the planet — but the ark won't last forever. So the repressive regime picks 100 expendable juvenile delinquents to send down to Earth to see if the planet is still habitable.
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see all options Availability data: JustWatch
- Seasons
- 7
- Episodes aired
- 100
- Latest aired
- S07E16
- Total runtime
- 2d 21h
Timeline when each season aired
- Season 1 March 2014 – June 2014 13 episodes
- Season 2 October 2014 – March 2015 16 episodes
- Season 3 January 2016 – May 2016 16 episodes
- Season 4 February 2017 – May 2017 13 episodes
- Season 5 April 2018 – August 2018 13 episodes
- Season 6 April 2019 – August 2019 13 episodes
- Season 7 May 2020 – September 2020 16 episodes
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S04E01 Echoes
February 1 · 43min find the promo
Show synopsis
Clarke and her friends struggle with how to proceed after the fate of the world is revealed.
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S04E02 Heavy Lies the Crown
February 8 · 42min find the promo
Show synopsis
The burden of leading weighs heavily upon Clarke and Bellamy when different challenges force them to determine who will live and die.
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S04E03 The Four Horsemen
February 15 · 41min find the promo
Show synopsis
Jaha leads Clarke and Bellamy down a road to possible salvation while tensions rise in Arkadia and Polis.
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S04E04 A Lie Guarded
February 22 · 42min find the promo
Show synopsis
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.
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S04E05 The Tinder Box
March 1 · 40min find the promo
Show synopsis
Clarke makes a desperate plea with a former allied force in an attempt to avoid a war and ensure the survival of her people.
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S04E06 We Will Rise
March 15 · 42min find the promo
Show synopsis
Clarke and Roan are forced to work together when they are tasked to deliver a dangerous but crucial asset to Abby through enemy territories.
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S04E07 Gimme Shelter
March 22 · 42min find the promo
Show synopsis
Clarke's arrival on the island quickly takes a turn for the worse. Meanwhile, Bellamy tries to avoid further tragedy in Arkadia.
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S04E08 God Complex
March 29 · 42min find the promo
Show synopsis
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.
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S04E09 DNR
April 26 · 42min find the promo
Show synopsis
Jasper and Bellamy go on a quest. Meanwhile, Clarke struggles to keep the peace after word of Jaha's discovery spreads.
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S04E10 Die All, Die Merrily
May 3 · 42min find the promo
Show synopsis
Octavia fights in the final battle for her people's survival, but not everyone is willing to play fair.
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S04E11 The Other Side
May 10 · 42min find the promo
Show synopsis
Clarke faces the consequences of her fateful choice.
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S04E12 The Chosen
May 17 · 42min find the promo
Show synopsis
Jaha and Kane disagree over how to handle their grim reality. Meanwhile, Clarke leads a group to save a friend.
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S04E13 Praimfaya
May 24 · 41min find the promo
Show synopsis
It's a race against the end of the world as Praimfaya arrives forcing our heroes to make impossible decisions to ensure their survival.