大象传媒

In this final episode Will gains exclusive access to explore the usually inaccessible locations that are home to some of the biggest engineering projects in Wales, both past and present. He kayaks over the highest navigable aqueduct in the world, visits the vital repair work to an underground Victorian engineering marvel, witnesses the defueling of Wales鈥檚 last nuclear reactor and discovers how one of the biggest freight planes the world has ever seen is constructed.