| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S04E01 | Fort Bragging Rights | 27 | ||
| S04E02 | The Naturalists | 28 | ||
| S04E03 | The Roanoke Super Highway | 27 | ||
| S04E04 | Giving Nature a Hand | 27 | ||
| S04E05 | First Lost Colony | 28 | ||
| S04E06 | Fossil Fields | 27 | ||
| S04E07 | Fords and Mills | 27 | ||
| S04E08 | Basin Basics | 25 | ||
| S04E09 | The Edge of Life | 26 | ||
| S04E10 | Logos vs. Leaves | 27 | ||
| S04E11 | Colors of the Earth | 27 | ||
| S04E12 | Cradle of Forestry | 27 |
No artwork of this type.
No artwork of this type.
No artwork of this type.