The late, great and supremely enthusiastic Fred Dibnah's passion for Britain's industrial past continues apace as he sets about digging a 100-foot deep mineshaft in his back garden. In the programme the ex-steeplejack has reached a depth of 25ft in his bid to construct an authentic coal mine in his back garden, and visits some real working mines to pick up tips as he unveils his plans for a winding engine and railway.