Superman has to save Lois Lane from a cult of hawk-people in an homage to Edgar Rice Burroughs's "At the Earth's Core".
You can now watch The Underground World online on the following streaming providers in the United States.
| Directing | Seymour Kneitel | Director |
| Writing | Joe Shuster | Characters |
| Writing | Edgar Rice Burroughs | Novel |
| Writing | Jerry Siegel | Characters |
| Writing | Jay Morton | Story |
| Sound | Sammy Timberg | Music |
| Visual Effects | Reuben Grossman | Animation |
| Visual Effects | Nick Tafuri | Animation |
