A man who appears to possess an actual spirit claims a $3 million insurance payoff from a debunker of psychics.
A puzzle-solver (Kenneth Mars) digs to unearth a treasure chest described in a book, but finds the slain author (Paul Sand) instead.
An American tourist is accused of blackmailing a hotel; Elizabeth finds an old love letter sent to Culver.
A has-been exceptional pilot (James Callahan) and a revolutionary new aircraft disappear during a flight over the Atlantic Ocean.
A gem dealer's daughters may be behind the largest diamond heist in Amsterdam's history; guests Patrick Macnee, Annie Potts.
Culver and Wingate investigate the puzzling disappearance of a historic British steam locomotive.
Culver and Wingate suspect a hoax after an airplane hijacker who collected a $5 million ransom vanishes in a forest.
Single father, Virginia horse breeder and pilot James Greyson Culver and his British partner try to save a royal family; guest Hurd Hatfield.