A giant spider fossil leads a geologist to discover a method of synthesizing petroleum.
| Name | Type | Role | |
|---|---|---|---|
| Jerome Sackheim | Writer | ||
| Robert Clarke | Guest Star | ||
| George Meader | Guest Star | ||
| Herbert Rudley | Guest Star | ||
| Gene Barry | Guest Star | ||
| Audrey Totter | Guest Star | ||
| Frank Hanley | Guest Star | ||
| Ludwig Stossel | Guest Star | ||
| Phil Arnold | Guest Star | ||
| Jack Arnold | Director |