If you go to NBC's official website and look up their upcoming primetime series The Event, you will get the following synopsis:
"A suspense-filled journey where the answers only lead to bigger questions."
If that sounds incredibly vague, that's because it is. It's also intentional. Go ahead and watch the trailer. Go on. Did you watch it? Can you tell me what this show is about? No. You can't. NBC has released a four-minute trailer that doesn't explain the story, never touches on character motivations, only drops cryptic hints at the nature of the plot and playfully dances around what the titular "event" actually is.
Well NBC, if your goal was to get me to tune in, you've succeeded.