Onyeka is in Nottingham as he goes on the trail of Victorian law and order. The 1800s saw the ancient settlement of Nottingham transform into a bustling industrial hub, but with growth came tension, and even violence.
Onyeka's walk begins in Edinburgh's Old Town, where in 1726, the University of Edinburgh had set up its medical school - the very first in the country. Onyeka reveals that the school became caught up in the greatest scandal of the era.
Onyeka's walk begins on the west side of the Pennines in Burnley. By the dawn of the Victorian age, the town of Burnley had established itself as a major producer of cotton cloth. He also goes to Halifax in West Yorkshire to visit Dean Clough Mills.