The world’s tallest deciduous tree, Tasmania’s giant eucalyptuses, can reach up to one hundred metres into the sky. Australian politician and environmental activist Bob Brown has dedicated himself to saving these extraordinary trees. Brown’s vivid narrative takes us on a journey through more than fifty years of his work as an activist and Australia’s first openly gay MP. Based on 3D scans, the trees are brought to life on screen, inviting us to immerse ourselves in a unique natural world.