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• S29.E1 ∙ Death Star
• S29.E2 ∙ Neanderthals on Trial
• S29.E3 ∙ Fireworks!
• S29.E4 ∙ Secrets, Lies, and Atomic Spies
• S29.E5 ∙ The Missing Link
• S29.E6 ∙ Shackleton's Voyage of Endurance
• S29.E7 ∙ Why the Towers Fell
• S29.E8 ∙ Fire Wars
• S29.E9 ∙ Killer Disease on Campus
• S29.E10 ∙ Mysterious Life of Caves
• S29.E11 ∙ Lost Roman Treasure
• S29.E12 ∙ Galileo's Battle for the Heavens
• S29.E13 ∙ Volcano's Deadly Warning
• S29.E14 ∙ Sinking City of Venice
• S29.E15 ∙ The Orchid Hunter