In April 2015, the Hatton Garden Safe Deposit Company, an underground facility in London, was the victim of an audacious multi million pound raid. A group of retirement-age career criminals, with a combined age of 446, the so-called "Diamond Geezers", robbed the vault in what would be the biggest burglary in UK history which the team of professional criminals hoped would make them rich beyond their wildest dreams. The sophisticated plan, years in the making, resulted in tens of millions of pounds worth of valuables being stolen and the gang of unlikely criminals becoming the most wanted men in the country. `Hatton Garden : The Heist tells the story that captured the public's imagination more than any other crime since The Great Train Robbery.