A comet is discovered to be on a collision course with Earth. As doomsday nears, the human race prepares for the worst.

An ordinary man frustrated with the various flaws he sees in society begins to psychotically and violently lash out against them.

The early life and career of Vito Corleone in 1920s New York City is portrayed, while his son, Michael, expands and tightens his grip on the family crime syndicate.