"A New Light" explores the intellectual and cultural conflicts between traditional religious beliefs and the forces of modernity, which reached a crescendo in the 1925 trial of John Scopes, a Tennessee teacher arrested for teaching evolution.

"Of God and Caesar" explores the religious and political aspirations of conservative evangelicals' moral crusade over divisive social issues such as abortion and gay marriage. Across America, the religious marketplace expanded as new waves of immigrants from Asia, the Middle East and Latin America made the United States the most religiously diverse nation. The 2008 presidential election brought the re-emergence of a religious voice in the Democratic Party, bringing the country to a new plateau in its struggle to reconcile faith with politics. The 6-hour series closes with reflections on the role of faith in the public life of the country.