Sezon 4
Bölümler
1 Tidal Waves 20 Eyl 1979 2 Carlos, the Most Wanted Man in the World 27 Eyl 1979 3 The Amityville Horror 4 Eki 1979 4 UFO Australia 11 Eki 1979 5 Immortal Sharks 18 Eki 1979 6 The Lost Colony of Roanoke 25 Eki 1979 7 The Shroud of Turin 8 Kas 1979 8 Mexican Pyramids 15 Kas 1979 9 The Abominable Snowman 22 Kas 1979 10 Pompeii 29 Kas 1978 11 D.B. Cooper 6 Ara 1979 12 The Ten Commandments (aka Mount Sinai) 13 Ara 1979 13 The Dark Star (aka The Dogons) 20 Ara 1979 14 The San Andreas Fault 27 Ara 1979 15 The Missing Heir 3 Oca 1980 16 Vincent Van Gogh 10 Oca 1980 17 Wild Children 17 Oca 1980 18 The Ghost Ship (aka Mary Celeste) 24 Oca 1980 19 Earth Visitors 31 Oca 1980 20 John the Baptist 7 Şub 1980 21 Air Disaster Prediction 14 Şub 1980 22 The Bimini Wall 21 Şub 1980 23 Glenn Miller 7 Mar 1980 24 Past Lives 14 Mar 1980