Fittingly for this week, the final part of this intriguing documentary series deals with probably the most historically famous attack against the monarchy – the Gunpowder Plot.

Catholic priest John Gerard meets Guy Fawkes and his band of mercenaries in a pub.

They plan their audacious attack on the Houses of Parliament when everyone of importance, including King James I and his two sons, will be inside. But the King’s spymaster, Robert Cecil, is on to them and catches Guy Fawkes, matches in hand…

A must-watch for anyone who’s been gripped by BBC1’ s Gunpowder