A Russian agent travels to the U.S. to stop a crazed defector from triggering human time bombs.

The Cold War is drawing to a close, but KGB hard-liner Nicolai Dalchimsky is unwilling to give up the fight. He activates the twenty-year-old plan to have some brainwashed Americans blow up a U.S. defense installation by reciting a Robert Frost p m to them. The explosions alert the Kremlin to the fact that there is a rogue KGB agent that they must deal with, so they send KGB agent Grigori Borzov to stop him. A beautiful double agent named Barbara accompanies Grigori, and as they try to prevent Nicolai form starting World War III, they fall in love.