There have been many shipwrecks, but none has captured the public's imagination like the Titanic. From the moment Titanic hit an iceberg and sank on 14 April 1912, the public has been captivated by the story. Of over 2,200 passengers and crew, only 705 survived. In 1912, the newspapers were full of stories of heroism and villainy, and the story of the Titanic has been told and retold ever since in an endless stream of books and films. Some of the stories are true, many are myths which were first told in 1912, but have been passed on from generation to generation ever since. With the help of rare archive footage and location filming in America, Britain and Northern Ireland, Timewatch attempts to answer the mystery - why does the story of the Titanic have such a hold on people?