A famous thief in his younger years, widower Brian Reader, 77 years of age, pulls together a band of misfit criminals to plot an unprecedented burglary at the Hatton Garden Safe Deposit. The thieves, all in their 60s and 70s except for one, manage to escape with allegedly £200 million worth of stolen jewels and money. When police are called to the scene and the investigation starts, the cracks between the eccentric gang members begin to show as they fight over how to share the goods and become increasingly distrustful of each other.