This episode follows the construction of a fully working coal-fired Edwardian fish and chip shop at Beamish Museum. Charlie helps with the refurbishment of one of the world's oldest surviving frying ranges, and gets a horse-drawn fish and chip cart back on the road. Meanwhile, Dan discovers the surprising origins of our national dish and explores its rise from squalid back-street outlets to grand fish and chip palaces.

• Dan Cruickshank
• Charlie Luxton