This story of nuclear war and worldwide destruction, in the form of a film scenario, is set in Los Angeles in 2108. It portrays what remains of the world a century after the Third World War has left it in ruins. From spared New Zealand, a "Rediscovery Expedition to North America" has been dispatched, and it is from the experiences of Chief Botanist Alfred Poole that we learn about the 22nd-century way of life.