Mysterious disappearances are confounding and bizarre and simply can't be explained. Can these be chalked up to tragic accidents? Or could they be the result of something more...UnXplained?

Cast: William Shatner, John Nance, Michael Tuttle, Michio Kaku, Greg Liefer, Nick Begich Jr., Tok Thompson, Gregory Deyermenjian, Lynne S. McNeill, Ken Layne, Forrest Gander, Logan Hawkes, Michael Dennin, Bruce Gernon, Joe Erato