Based on the true story of the 1963 train robbery, this film shows how a group of mid-level criminals masterminded by Bruce Reynolds joined forces with a corrupt solicitor to hijack the Bank Holiday mail train from Euston to Glasgow. But their meticulous planning was compromised by a violent attack on the train driver and a botched getaway. Faced with such a huge and audacious crime, worth £44 million in today's money, the establishment hit back - and Reynolds and his men became the most wanted men in Britain.

Drama based on the true story of the police investigation into the 1963 train robbery, spearheaded by the Flying Squad's legendary DCS Tommy Butler and conducted in the full glare of public and media scrutiny. In a race against time, can Butler and his hand-picked team of detectives identify every criminal involved in the robbery and bring them to justice before they flee the country? And even if they catch the criminals - can they find the money itself?