Season Four of Unsolved Mysteries premiered on September 18, 1991.
Episodes
| # |
#
|
Title
|
|
|
Airdate
|
|
|
|
| 93 |
1
|
Episode 93
|
|
|
September 18, 1991
|
|
|
|
| 94 |
2
|
Episode 94
|
|
|
September 25, 1991
|
|
|
|
| 95 |
3
|
Episode 95
|
|
|
October 2, 1991
|
|
|
|
| 96 |
4
|
Episode 96
|
|
|
October 9, 1991
|
|
|
|
| 97 |
5
|
Episode 97
|
|
|
October 16, 1991
|
|
|
|
| 98 |
6
|
Episode 98
|
|
|
October 23, 1991
|
|
|
|
| 99 |
7
|
Episode 99
|
|
|
October 30, 1991
|
|
|
|
| 100 |
8
|
Episode 100
|
|
|
November 3, 1991
|
|
|
|
| 101 |
9
|
Episode 101
|
|
|
November 6, 1991
|
|
|
|
| 102 |
10
|
Episode 102
|
|
|
November 10, 1991
|
|
|
|
| 103 |
11
|
Episode 103
|
|
|
November 13, 1991
|
|
|
|
| 104 |
12
|
Episode 104
|
|
|
November 20, 1991
|
|
|
|
| 105 |
13
|
Episode 105
|
|
|
November 27, 1991
|
|
|
|
| 106 |
14
|
Episode 106
|
|
|
December 4, 1991
|
|
|
|
| 107 |
15
|
Episode 107
|
|
|
December 11, 1991
|
|
|
|
| 108 |
16
|
Episode 108
|
|
|
December 18, 1991
|
|
|
|
| 109 |
17
|
Episode 109
|
|
|
January 15, 1992
|
|
|
|
| 110 |
18
|
Episode 110
|
|
|
January 29, 1992
|
|
|
|
| 111 |
19
|
Episode 111
|
|
|
February 5, 1992
|
|
|
|
| 112 |
20
|
Episode 112
|
|
|
February 12, 1992
|
|
|
|
| 113 |
21
|
Episode 113
|
|
|
February 19, 1992
|
|
|
|
| 114 |
22
|
Episode 114
|
|
|
February 26, 1992
|
|
|
|
| 115 |
23
|
Episode 115
|
|
|
March 4, 1992
|
|
|
|
| 116 |
24
|
Episode 116
|
|
|
March 18, 1992
|
|
|
|
| 117 |
25
|
Episode 117
|
|
|
April 1, 1992
|
|
|
|
| 118 |
26
|
Episode 118
|
|
|
April 8, 1992
|
|
|
|
| 119 |
27
|
Episode 119
|
|
|
April 15, 1992
|
|
|
|
| 120 |
28
|
Episode 120
|
|
|
April 22, 1992
|
|
|
|
| 121 |
29
|
Episode 121
|
|
|
April 29, 1992
|
|
|
|
| 122 |
30
|
Episode 122
|
|
|
May 6, 1992
|
|
|
|
| 123 |
31
|
Episode 123
|
|
|
May 13, 1992
|
|
|
|
| 124 |
32
|
Episode 124
|
|
|
May 17, 1992
|
|
|
|
| 125 |
33
|
Episode 125
|
|
|
May 20, 1992
|
|
|
|
| 126 |
34
|
Episode 126
|
|
|
August 12, 1992
|
|
|
|
| 127 |
35
|
Episode 127
|
|
|
August 19, 1992
|
|
|
|
| 128 |
36
|
Episode 128
|
|
|
September 2, 1992
|
|
|
|
| 129 |
37
|
Episode 129
|
|
|
September 9, 1992
|
|
|
|
