Have you ever seen a ghost? Have you ever known something was going happen before it happened? If so, you may share a link with the paranormal. Or it might just be your brain playing tricks on you. Whether you're a skeptic or a believer in the supernatural, you have to admit there are things out there your brain just can't quite explain. This is an episode about your brain and the paranormal. Get ready for a series of games and experiments designed to prove you actually know more about the unknown than you think. We're going to put your sixth sense to the test by ...

• Neil Patrick Harris
• Jason Silva
• Keegan-Michael Key