This is the second episode in the First season, and revolves around Cornel Robert Boudahas (Andrew Johnston) who appears to be suffering the effects of piloting craft that may be based upon extraterrestrial technology. At some point, he vanishes, which results his wife calling in the FBI.
Story-wise, it’s not the best of the series, though it’s notable for the introduction of “Deep Throat” (Jerry Hardin) a character that is based loosely upon the Watergate informer and is probably one of the most fascinating characters in the series (other than the leads, that is).