Where to Watch in
Free
hd
hd
Subscription
hd
Plot
The original discoverer's son takes Clark Kent and Lois exploring in unknown regions of Henderson Caverns. Henderson and Lois enter an underground world of hawk-men who have deadly plans for them.
Where to watch The Underground World?
The Underground World is an action movie featuring Jackson Beck.
The Underground World is currently streaming for free (ad-supported) on Plex and Plex Player and it's also available on History Vault.