# Title Aired
1 The Journey Continues
1 Drilling Down on Season 3
2 The Puzzle Takes Shape
2 Drilling Down on "Columbus Day"
3 Drilling Down on "Silence in the Dark"
4 Drilling Down on "Sword Play"
5 Drilling Down On Secrets and Revelations
5 Drilling Down on "Voices from Below"
6 Drilling Down on "Secrets and Revelations"