In Kent, Matt visits one of the world's most prestigious champagne houses making the first true Anglo-French sparkling wine. In the Rhondda Valley he explores a Victorian railway tunnel.
Matt meets a Scottish self-taught foodie pioneer, the volunteers keeping a Welsh engineering triumph alive, and Northern Ireland's only female harbourmaster.
Matt meets the people caring for two of Scotland's manmade wonders, including the world's only rotating boat lift, and gets the chance to sound the whistle used in the 1966 World Cup Final.
Matt meets the fantastic folk preserving buildings in Scotland's wildest places, before being suspended from a towering pylon to see how Wales stays connected.
