In part one of a two-part special presentation, NOVA reports on the trials to determine whether the new drug Interleukin-2 - the first to make use of the body's own disease-fighting strategy - will live up to its promise as a pivotal cancer breakthrough. Jane Pauley of NBC News hosts and narrates.

NOVA Season 15 Episodes...

• s15e01 - Death of a Star
• s15e02 - Spy Machines
• s15e03 - The Hidden Power of Plants
• s15e04 - Japan's American Genius
• s15e05 - A Man, A Plan, A Canal, Panama
• s15e06 - Volcano!
• s15e07 - How Good is Soviet Science?
• s15e08 - Ancient Treasures from the Deep
• s15e09 - Riddle of the Joints
• s15e10 - Secrets of the Lost Red Paint People
• s15e11 - Top Gun and Beyond
• s15e12 - How to Create a Junk Food
• s15e13 - Buried in Ice
• s15e14 - Why Planes Burn
• s15e15 - Battles in the War on Cancer: A Wonder Drug on Trial (1)
• s15e16 - Battles in the War on Cancer: Breast Cancer
• s15e17 - The Mystery of the Master Builders
• s15e18 - Whale Rescue
• s15e19 - The Man Who Loved Numbers
• s15e20 - Race for the Superconductor
• s15e21 - Can You Still Get Polio?

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.