Written by Ronan Bennett
Directed by J Blakeson
Robert Catesby and his close friend Thomas Wintour travel to mainland Europe to seek the assistance of the Catholic King of Spain, but the brutal actions of the King's representative, the Constable of Castile, force Catesby to find allegiances in his own country.
In England, Lord Cecil enlists a spy, and puts pressure on Catesby's cousin Anne Vaux, in hopes of determining Catesby's whereabouts.
Catesby and Wintour are introduced to Guy Fawkes, whose expertise in logistics and explosives could prove helpful. Returning to England, Catesby and his supporters work out the logistics for a bold plan to overthrow King James.