What was supposed to be a sleepy Easter Bank holiday weekend in London's world-famous jewellery quarter is thrown into chaos, when Brian Reader leads a gang of career criminals in an attempt to carry out the daring task of breaking into the vault of the Hatton Garden Safe Deposit Company.

When the Metropolitan Police discover the burglary after the long Easter weekend, the gang members already have a two-day lead on them. They are desperate to split up the stolen goods, but more delays frustrate them. However, they soon come to realise that it is not only the police who are chasing them - Brian Reader also wants his share.