An alien spaceship in distress is sending an SOS to personnel at an arctic outpost.
| Name | Type | Role | |
|---|---|---|---|
| George Van Marter | Writer | ||
| Leon Benson | Writer | ||
| Rachel Ames | Guest Star | ||
| Kenneth Tobey | Guest Star | ||
| Louis Jean Heydt | Guest Star | ||
| DeForest Kelley | Guest Star | ||
| Walter Kingsford | Guest Star | ||
| Leon Benson | Director | ||
| George Van Marter | Director | ||
| Ivan Tors | Director |