The investigation was conducted — Season 4
01 Episode 1
Feb 6, 200945m★ 7.0
02 Episode 2
Feb 13, 200945m★ 7.0
03 Episode 3
Feb 20, 200945m★ 7.0
04 Episode 4
Mar 6, 200945m★ 7.0
05 Episode 5
Mar 20, 200945m★ 7.0
06 Episode 6
Mar 27, 200945m★ 7.0
07 Episode 7
Apr 3, 200945m★ 7.0
08 Episode 8
Apr 10, 200945m★ 7.0
09 Episode 9
Apr 17, 200945m★ 7.0
10 Episode 10
Apr 24, 200945m★ 7.0
11 Episode 11
May 22, 200945m★ 7.0
12 Episode 12
May 29, 200945m★ 7.0
13 Episode 13
Jun 5, 200945m★ 7.0
14 Episode 14
Jun 11, 200945m★ 7.0
15 Episode 15
Jun 19, 200945m★ 7.0
16 Episode 16
Jun 26, 200945m★ 7.0
17 Episode 17
Sep 11, 200945m★ 7.0
18 Episode 18
Sep 18, 200945m★ 7.0
19 Episode 19
Sep 25, 200945m★ 7.0
20 Episode 20
Oct 9, 200945m★ 7.0
21 Episode 21
Oct 16, 200945m★ 7.0
22 Episode 22
Oct 23, 200945m★ 7.0
23 Episode 23
Nov 13, 200945m★ 7.0
24 Episode 24
Nov 20, 200945m★ 7.0
25 Episode 25
Dec 18, 200945m★ 7.0
26 Episode 26
Dec 25, 200945m★ 7.0