John Craven and Charlotte Smith head to the National Forest in the Midlands as it reaches a milestone moment: the planting of its 10-millionth tree. They discover how three decades of regeneration have transformed formerly scarred mining land into a thriving mosaic of woodland and rich wildlife habitat. John and Charlotte meet the people whose lives have been reshaped by the forest, from a women’s walking group discovering the countryside on their doorstep to the craftspeople building sustainable livelihoods from woodland materials. In Devon, Adam Henson meets a young farming couple reviving the practice of traditional woodland grazing