|This article is about the episode. You may be looking for the location.|
| Season One, Episode 42|
|Airdate:||March 25, 2010|
|Director:||Pongo Kuo, Trevor Wall|
| Written &|
Table Soccer Competition
Groundhog Castle is episode forty-two of of season one of Hero: 108.
- First appearance of the Groundhogs.
- Groundhog king was able to speak human language by diging a hole under Parrot King's castle.