Since the disappearance of his sister when he was a child, Fox Mulder has been obsessed with the paranormal. Now a Special Agent in the FBI, Mulder has continued with hi interest into all things strange. He takes on all the cases that have been left unresolved in the FBI's X-Files, earning him the nickname spooky.
Dana Scully, an MD, has been assigned to the X-Files by the powers that be to use her level-headedness in order to debunk and disprove some of Mulder's theories. However, as she has got more involved with Mulder's cases, she is starting to see more and more things that she is unable to understand or explain.