Sixty-five years after attempts to ban them, chemical weapons pose more of a threat than ever. NOVA looks at the problem of controlling substances that are easily produced and cruelly effective.

NOVA Season 18 Episodes...

• s18e01 - The KGB, The Computer and Me
• s18e02 - Neptune's Cold Fury
• s18e03 - To Boldly Go...
• s18e04 - Poisoned Winds of War
• s18e05 - The Blimp is Back!
• s18e06 - Earthquake!
• s18e07 - Killing Machines
• s18e08 - Can the Elephant Be Saved?
• s18e09 - We Know Where You Live
• s18e10 - In the Land of the Llamas
• s18e11 - What's Killing the Children?
• s18e12 - Return to Mt. St. Helens
• s18e13 - ConFusion in a Jar
• s18e14 - The Hunt for China's Dinosaurs (1)
• s18e15 - Case of the Flying Dinosaur (2)
• s18e16 - T. rex Exposed
• s18e17 - Russian Right Stuff: The Invisible Spaceman
• s18e18 - Russian Right Stuff: The Dark Side of the Moon
• s18e19 - Russian Right Stuff: The Mission
• s18e20 - Swimming With Whales
• s18e21 - The Chip vs. the Chessmaster

NOVA Show Summary

Seen in more than 100 countries, NOVA is the most watched science based television series in the world and the most watched documentary series on PBS. It is also one of television's most acclaimed series, having won many major television awards, most of them many times over.