Neil Oliver presents this four-part BBC documentary series about the golden age of exploration. In each episode Neil traces the footsteps of a different explorer from Scotland, visiting locations including the Zambesi river, the Antarctica, Yosemite Valley and Japan, and discussing subjects such as slavery, science, conservation and war along the way. The episodes are: 'Livingstone', 'William Speirs Bruce', 'John Muir' and 'Thomas Blake Glover'.