Synopsis
Ten years after the most deadly tsunami ever known, scientists are making a shocking discovery. Experts used to believe that the biggest killer waves were only generated in a handful of regions, but mounting evidence now suggests that most of the world's coasts, from the Mediterranean to Australia, could be in grave danger. But where will the next Big One strike first? Two countries seem to be on borrowed time. America is facing the worst natural disaster in its history; and Indonesia, still reeling from the Boxing Day wave, is in the line of fire again.