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  • S15.E1 ∙ Top Gun and Beyond
  • S15.E2 ∙ How to Create a Junk Food
  • S15.E3 ∙ Buried in Ice
  • S15.E4 ∙ Why Planes Burn
  • S15.E5 ∙ Battles in the War on Cancer: A Wonder Drug on Trial
  • S15.E6 ∙ Battles in the War on Cancer: Breast Cancer - Turning the Tide
  • S15.E7 ∙ The Mystery of the Master Builders
  • S15.E8 ∙ Whale Rescue
  • S15.E9 ∙ The Man Who Loved Numbers
  • S15.E10 ∙ Race for the Superconductor
  • S15.E11 ∙ Can You Still Get Polio?
  • S15.E12 ∙ Pioneers of Surgery: The Brutal Craft (1)
  • S15.E13 ∙ Pioneers of Surgery: Into the Heart (2)
  • S15.E14 ∙ Pioneers of Surgery: New Organs for Old (3)
  • S15.E15 ∙ Pioneers of Surgery: Beyond the Knife (4)
  • S15.E16 ∙ Can the Vatican Save the Sistine Chapel?
  • S15.E17 ∙ Can the Next President Win the Space Race?
  • S15.E18 ∙ Do Scientists Cheat?
  • S15.E19 ∙ Who Shot President Kennedy?
  • S15.E20 ∙ The Light Stuff
  • S15.E21 ∙ The All-American Bear
  • S15.E22 ∙ Can We Make a Better Doctor?