| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S04E01 | Return Date: Unknown |
PBS
|
26 | |
| S04E02 | Seeds of Life |
PBS
|
26 | |
| S04E03 | Beekeeper |
PBS
|
26 | |
| S04E04 | Another World is Possible |
PBS
|
26 |
No artwork of this type.
No artwork of this type.
No artwork of this type.