Matt Baker explores Dalby Forest as the Forestry Commission marks its centenary, and Turner Prize-winning artist Rachel Whiteread shows us her sculpture, commissioned to mark the anniversary. Ellie Harrison captures the winter beauty of this county's diverse landscape. John Craven meets the wood carver known as Stick Man. We go dolphin spotting with Paralympian Hannah Cockroft and Adam Henson is meeting the ex-England rugby player who has traded in world cups for prize-winning cattle. Tom is on the trail of the dog thieves targeting the countryside.