Jeffrey Sachs delivers the first of five lectures, recorded at The Royal Society, London. Sachs outlines the challenges facing mankind and argues that we must adapt to the new age.

Jeffrey Sachs delivers the second lecture from the University in Beijing. He discusses China's emergence as an economic superpower and asks what this means for the challenges ahead.

Jeffrey Sachs delivers the third of five lectures from the Earth Institute at Columbia University, New York. He talks about the need for international co-operation.

Jeffrey Sachs delivers the fourth of five lectures. He considers the challenges of extreme poverty and the worry of the developed world which fears for its own prosperity.

Jeffrey Sachs delivers the last of five lectures. He calls for a new Enlightenment to help make globalisation work for all and lays out a blueprint for global co-operation.