The following contains spoilers for "Sanctum," the premiere episode of The 100 Season 6.
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Season 6 starts with fan-favorite character Monty Green long-dead from old age.
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The character had placed the last of humanity in cryosleep after Earth became uninhabitable.
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Awakening 125 years later, the characters find a message briefing them on their new home.
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Monty and Harper had a son named Jordan, also placed in cryosleep after reaching adulthood.
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Monty begs his friends to overcome their differences to rebuild civilization.
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Additionally, he develops an algae to fight a deadly infection killing Kane.
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Sorely missing their longtime friend, the survivors tenuously agree to work together.
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Decades after his death, Monty Green continues to influences his friends' future.
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