Watch The 100

In this post-apocalyptic thriller series, a hundred young survivors of Armageddon are sent from their sanctuary on orbiting space stations back to Earth to see if the planet can still support life. It may be, but the new colonists are not going to have an easy time of it.

Thursday 9:00 PM et/pt on The CW
5 Seasons, 72 Episodes
March 19, 2014
Cast: Paige Turco, Bob Morley, Marie Avgeropoulos, Henry Ian Cusick
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The 100 Full Episode Guide

  • Clarke and her friends must risk everything to fight one last battle for survival, only to glimpse an even darker threat to the last living valley on Earth.

  • Octavia leads her people into war. While behind enemy lines, our heroes must overcome their differences to save Wonkru from extinction.

  • As Clarke races to save Abby, she learns more about the trials and tribulations Wonkru faced in the bunker, and the impossible decisions they were forced to make in the dark year.

  • Monty strives to show Wonkru an alternative to war, and to the valley itself. Meanwhile, Abby's health continues to deteriorate, along with McCreary's patience.

  • The growing fractures in Wonkru threaten to explode once and for all. Meanwhile, in Shadow Valley, Murphy starts a fire, unleashing catastrophic results.

  • Clarke's determination to protect Madi puts Bellamy in an impossible position.

  • Clarke and Bellamy make a startling discovery about Wonkru's battle plans as Echo risks her friendship with Raven to complete her mission.

  • Kane's attempt to prove himself useful tests Wonkru's allegiance to Octavia. Madi faces an unexpected threat inside Wonkru, forcing Clarke to make an unlikely ally.

  • Octavia leads her people towards Shallow Valley against the advice of Clarke and Bellamy. Meanwhile, Kane and Abby adjust to a new set of challenges.

  • Our heroes are forced to rely on the help of Shallow Valley's dangerous new inhabitants in order to save some of their own, with surprising results.

  • Bellamy leads the charge investigating a potential way home. Meanwhile, Clarke and Madi deal with the new, uncertain threat to their home.

  • Octavia is forced to take guidance from an unlikely ally when the future of the bunker and all those inside it is jeopardized.

  • Clarke struggles to survive on a desolate, scorched earth while her friends in space come across a long-awaited beacon of hope.

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

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

  • Clarke faces the consequences of her fateful choice.

  • Jasper and Bellamy embarl on a quest. Meanwhile, Clarke fails to establish peace after word of Jaha's discovery spreads.

  • Following a discouraging discovery, Clarke and Abby must decide how far they're willing to go. Meanwhile, Jaha finds a lead to the mysterious Second Dawn.

  • Clarke’s arrival on the island takes an unexpected turn. Meanwhile, Bellamy attempts to avoid further damage in Arkadia.

  • Clarke and Roan must work together in dangerous territory to deliver a vital asset to Abby and her team.

  • Clarke pleads with a former allied force in an effort to avoid a war and ensure the survival of her people.

  • Arkadia and Polis are plagued by distrust and mounting problems among leadership. Meanwhile, Abby leads a team to a distant location hoping to find answers.

  • Jaha leads Clarke and Bellamy down a path to possible salvation while tension boils over in Arkadia and Polis.

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

  • Clarke and her friends don't know which direction to go after the fate of the world is revealed.

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