Secrets of the Lost Liners

Setting sail in 1912, the Titanic was considered unsinkable due to its advanced safety features - but just four days into its maiden voyage, tragedy struck.

In January 2012, on the first leg of a cruise around the Mediterranean Sea, the Costa Concordia deviated from her route and was rocked by a deadly crash.

A ship with incredible misfortune, the MS Achille Lauro suffered two serious collisions, multiple onboard fires and was even hijacked by PLO terrorists in 1985.

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This episode has no summary.