Aired: October 15, 1966 | Season: 1 | Episode: 11
Overview
Runtime: 7m
Directed by:
Written by:
Description
While investigating a cavern, Jimmy Olsen is sucked into an underground world. Before he is rescued by Superman, he is menaced by a number of giant prehistoric animals.
Season 1 Episode 10
The Invisible Raiders
Season 1 Episode 12
The Return of Brainiac