The CNN host and best-selling author explores the revolutions--past and present--that define the polarized and unstable age in which we live.

Introduction: A multitude of revolutions -- Part I. Revolutions past. The first liberal revolution ; The glorious revolution ; The failed revolution ; The mother of all revolutions ; The real American revolution -- Part II. Revolutions present. Globalization in overdrive ; Information unbound ; Revenge of the tribes ; The dual revolutions -- Conclusion: The infinite abyss.