Here's a brief (very brief) something to start your weekend.
There are all sorts of quick-and-easy summaries of Hamlet out there. A ten-minute one gained some notoriety some years back, for example.
But if you really need the quickest possible refresher on Hamlet's plot, I'd go with Buster's. In just ten seconds, he captures the essence of the greatest tragic drama in all of western literature.
Links: The Episode at IMDB.