In the fourth season premiere Jacob and Evan open a brand new can of worms, namely, Pre-Islamic Arabia:

• Who was Napoleon, and how did he measure things?
• Where is Dilmun, and what mysterious people lived there?
• What are the My Way killings, and what psychological phenomena can we infer from them?
• What is the maximum travel distance of Venetian beads, and who predicted their great journey?
• Who was Timur, and what great leader did he claim descendence from?