Refugees return from exile in Babylon, and they try to rebuild. But religion is irrevocably changed. Books of the Bible start debating each other, and it gets intense. Some conservative books, like Chronicles, Ezra and Nehemiah, try to return to the old ways. Other books, like Jonah and Ruth, trail blaze very different ways to define God and Israel. The early post-exillic era is one of the most theologically diverse periods in all of Judeo-Christian history. Even God isn't safe as Job thoroughly dissects the very concept of divinity.
P.S. If this recording is too quiet, we are sorry! If it's really hard to listen at this volume, you may want to skip to Gideon, Episode 6, at which point we have fixed this issue.