On the season five finale of Lost, Jack contributed to the detonation of a nuclear bomb. Was this a mistake or a great plan?
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What will happen to Jack and Kate on the final season of Lost? Fans absolutely can't wait to find out, as they're seen here on the season five finale.
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On the fifth season finale, Lost viewers were introduced to actor Titus Welliver. He played a pivotal character simply referred to by fans as "The Man in Black."
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Jacob makes his first appearance on Lost in the fifth season finale. Then he dies.
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