17x15: The Big Spill
17x14: The Bomb's Lethal Legacy
17x13: Disguises of War
17x12: Race for the Top
17x11: Poison in the Rockies
17x08: What Is Music
17x06: Hurricane!
17x05: Decoding the Book of Life
17x04: Echoes of War
17x03: Design Wars!
17x02: The Controversial Dr. Koop
17x01: The Hidden City
16x21: Confronting the Killer Gene
16x20: The World Is Full of Oil!
16x19: Legends of Easter Island (2)
16x18: Secrets of Easter Island (1)