Aftermath: Castro, Khrushchev, Kennedy

Can Khrushchev and Kennedy stop a spiral into nuclear devastation? Khrushchev realises he has lost control of the crisis, as an American plane is shot down over Cuba. With the Americans preparing for war, can the two leaders communicate quickly enough to avoid it? Nina Khrushcheva and Max Kennedy, relatives of the superpower leaders, reflect on what might have been, in this extraordinary chapter in 20th Century history.