Game of Thrones star Kit Harington is set to star alongside Liv Tyler in a new TV series about a key moment in British history - the Gunpowder Plot.
In the forthcoming BBC One drama, Gunpowder, Harington plays Robert Catesby, a Warwickshire gentleman who was the mastermind behind the plan to blow up the Houses of Parliament on November 5, 1605.
Guy Fawkes, one of the most infamous characters in British history, is played by Downton Abbey's Tom Cullen and can be seen alongside Harington in a first-look trailer.
The newly-released promo shows a trail of gunpowder leading to a cellar where Fawkes is waiting, but when the camera pans further round it shows Catesby standing behind him narrating the clip.
Gunpowder will explore the events behind the famous plot and will also feature Mark Gatiss as Robert Cecil, the spymaster-in-chief of King James I (Derek Riddell) who pursued the conspirators in a cat-and-mouse game.
It will be shown in three hour-long episodes on TV screens this autumn on Saturday nights on BBC One.