The Gold plot
This series opens with the events of November 26, 1983, when six armed men break into the Brink's-Mat security depot near London's Heathrow Airport. Unexpectedly, they find gold worth 26 million pounds there. What begins as "a typical Old Kent Road armed robbery" according to detectives at the time becomes a major event in British crime history that would be remembered for years to come. It was even the largest theft in world history at the time.