Professor Alice Roberts visits Portsmouth to investigate the history of the Royal Navy, uncovering some uncomfortable truths behind the myth surrounding Lord Horatio Nelson and getting first-hand experience of what life would have been like in the heat of battle at Trafalgar. She also visits an archaeological dig on Burrow Island and a lantern show at the New Theatre Royal, and discovers the brutal punishments doled out for even minor offences by the Victorian penal system.

Alice Roberts explores Glasgow's age of steam, from lethal diseases and industrial injury to genteel tea rooms, football at Celtic Park, and the beautiful Loch Katrine