Watch The 100 Season 4 Episode 4 Online and see tensions rise in Arkadia and Polis, while Abby leads a scientific mission with a rag-tag group.

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Watch The 100 Season 4 Episode 4 Online in which the truth about Alpha Station finally comes out, leading Clarke to a tense encounter with her people. Meanwhile, in Polis, tensions between the Sky People and Azgeda finally reach their breaking point.

Episode Details

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 on The 100 Season 4 Episode 4.

Rating: 4.6 / 5.0 (23 Votes)
The 100
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