Think mirror….
Instead of helping crops think destroying them.
A Western agent is sent to Communist China in order to retrieve an important agricultural enzyme. Nobel Prize–winning university professor Dr. John Hathaway's mission begins with Lt. General Shelby's request at the U.S. embassy in London that he travel to China to visit Soong Li, a former professor of Hathaway's who has reportedly developed an enzyme that would permit crops to grow in any kind of climate.