| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S04E01 | American Killers |
April 1, 2012
Animal Planet
|
60 | |
| S04E02 | Pack of Teeth |
April 8, 2012
Animal Planet
|
60 | |
| S04E03 | Invisible Executioner |
April 15, 2012
Animal Planet
|
60 | |
| S04E04 | Asian Slayer |
April 22, 2012
Animal Planet
|
60 | |
| S04E05 | Russian Killer |
May 6, 2012
Animal Planet
|
60 | |
| S04E06 | Mongolian Mauler |
May 13, 2012
Animal Planet
|
60 | |
| S04E07 |
Phantom Assassin
season finale
|
May 20, 2012
Animal Planet
|
60 | |
| S04E08 |
Lair of Giants
season finale
|
May 28, 2012
Animal Planet
|
85 |
No artwork of this type.
No artwork of this type.
No artwork of this type.