| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S04E01 | Initiation Rituals |
August 5, 2007
National Geographic
|
60 | |
| S04E02 | Skin Deep |
August 5, 2007
National Geographic
|
60 | |
| S04E03 | Sexual Identity |
August 8, 2007
National Geographic
|
60 | |
| S04E04 | Signs of Identity |
August 15, 2007
National Geographic
|
60 | |
| S04E05 | Proving Ground |
August 22, 2007
National Geographic
|
60 | |
| S04E06 | Body Modification |
August 29, 2007
National Geographic
|
60 | |
| S04E07 | Nudity |
September 5, 2007
National Geographic
|
60 | |
| S04E08 | Trials of Faith |
October 3, 2007
National Geographic
|
60 | |
| S04E09 | Pets |
October 10, 2007
National Geographic
|
60 | |
| S04E10 | Gross Food |
October 31, 2007
National Geographic
|
60 | |
| S04E11 | Extreme Performers |
November 11, 2007
National Geographic
|
60 | |
| S04E12 | Jobs |
November 14, 2007
National Geographic
|
60 | |
| S04E13 | Mating |
November 21, 2007
National Geographic
|
60 | |
| S04E14 | Marked for Life |
March 2, 2008
National Geographic
|
60 | |
| S04E15 |
Quest for Acceptance
season finale
|
March 26, 2008
National Geographic
|
60 |
No artwork of this type.
No artwork of this type.