| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S02E01 | Seattle Fault |
December 28, 2017
|
5 | |
| S02E02 | Columns of Basalt Lava |
December 28, 2017
|
5 | |
| S02E03 | Chasing Ancient Rivers |
December 28, 2017
|
5 | |
| S02E04 | Lake Chelan — Battle of the Ice Sheets |
December 28, 2017
|
5 | |
| S02E05 | Bridge of the Gods Landslide |
December 28, 2017
|
5 | |
| S02E06 |
Ancient Cascades Volcanoes
season finale
|
December 28, 2017
|
5 |
No artwork of this type.
No artwork of this type.
No artwork of this type.