4: The Welsh Borders | History File
Edward I defeats Llewelyn ap Gruffydd, last prince of independent Wales. Edward's aim is British unity under English rule, but does he just achieve lasting enmity?
TweetS1E3: Warwick | Secrets of Great British Castles
In this episode, Dan explores Warwick Castle whose walls echo with tales of betrayal, bloodshed, murder and financial ruin.
S1E2: London | Underground Britain
In London, Rob discovers a labyrinth of tunnels, vaults and secret places the general public is not meant to know about. He visits a deserted `ghost' station, a vast bomb-proof bunker intended for Churchill in the event of a German invasion, and ventures beneath the Thames to examine an engineering marvel once described as the eighth wonder of the world.