I forgot where I read this but The Event is touted as this new espionage to replace 24.
It's not really clear what "the event" is. Some folks following the series development believe that it may have something to do with an Alien invasion.
Or maybe, Michael Jackson is alive in TV world and will hold a major concert event. Haha. Not funny. :P
Watch the trailer and see for yourself:
How'd you like the preview? I'm intrigued, to be honest.