Gunpowder

England, 1603. Under the new reign of King James I, English Catholics continue to be persecuted, and the mass is forbidden on pain of death. In the Warwickshire countryside, young Catholic nobleman Robert Catesby and his family are reaching their limits. After a barbaric act by the king"s forces, Catesby vows to avenge his kin and commit the highest act of treason imaginable—to kill the king.

Catesby and his cousin Thomas Wintour travel to Spain to request aid, but the Catholic monarch wishes to make peace with England following decades of war. After being introduced to Guy Fawkes in Flanders, they return to London to assemble their gang of plotters. They form a bold plan to strike in a week, at the opening of Parliament, but spymaster Lord Cecil and his men are hot on their trail.

On the eve of the 5th of November, Catesby and his men load the tunnels below Parliament with barrels of gunpowder. While Anne pleads with Robert to forsake his plot for his son"s sake, the Constable of Castile pressures Father Garnet to reveal Catesby"s intentions. When their plan is exposed, Fawkes tries to salvage the operation, and Catesby and his men fight one last, desperate battle.