Season 17

1.Poison in the Rockies

2.Race for the Top

3.Disguises of War

4.The Bomb's Lethal Legacy

5.The Big Spill

6.The Genius That Was China: Rise of the Dragon

7.The Genius That Was China: Empires in Collision

8.The Genius that Was China: The Threat from Japan

9.The Genius That Was China: Will the Dragon Rise Again?

10.The KGB, The Computer and Me

11.Neptune's Cold Fury

12.To Boldly Go...

13.Poisoned Winds of War

14.The Blimp is Back!

15.Earthquake!

16.Killing Machines

17.Can the Elephant Be Saved?

18.We Know Where You Live

19.In the Land of the Llamas

20.What's Killing the Children?