A documentary clearly made to stir fear and uncertainty. No scientific basis or common sense to it. Nostradamus's quatrains have no predictive power whatsoever, but a lot postdictive one, as people reinterpret them to fit historical events that have already happened. This documentary just dwells on the most sensationalistic aspects of Nostradamus's nonsense, letting imagination go unrestrained on the basis of some verses that can be interpreted to fit just about any event.
In a nutshell, this is an almost worthless program. No doubt the History Channel will be making money out of it (which is of course the idea) because of the many gullible viewers out there who have yet to develop any critical thinking. However, the seriousness and credibility of the History Channel are now seriously besmirched.