The Titanic is the greatest ship ever built; a dream of an ocean liner. People say it is unsinkable. Orphan Margaret Anne Brady can't believe how lucky she is to be plucked from a life of poverty to sail on the Titanic's maiden voyage as a companion to wealthy Mrs Carstairs. Surrounded by luxury, among the rich and famous, Margaret thinks that all her dreams have come true. But the Titanic is fated not to reach its destination. When the passengers are woken on a freezing night in April 1912, she finds herself plunged into an unimaginable nightmare...