Aspiring investigative reporter Marilyn is in for an unforgettable trip when she sneaks aboard a Royal Mail train from Glasgow to London on the night of August 7, 1963. While Marilyn's focused on her writing portfolio and convincing Dad not to ship her to boarding school, the night takes a turn when she witnesses more than a dozen masked men board the train. What Marilyn didn't know when she snuck aboard was that this Mail Train was transporting over £2 million in cash. The robbers detain the crewmen, seize control of the train, and then abscond into the night with their bounty... but thanks to Marilyn, they won't make it out scot-free.
