Debut: In the premiere episode a man (Chris Robinson) seeking to steal a new invention by Primus' sidekick is thwarted when his two man sub gets trapped when a mining explosion causes an underwater rock fall. The new invention is a robot that allows mining at up to 350 feet below sea level depth. With the aid of the new robot, Primus rescues the would be thief.
| Name | Type | Role | |
|---|---|---|---|
| Ronald Austin | Writer | ||
| James D. Buchanan | Writer | ||
| Susan Oliver | Guest Star | ||
| Henry Darrow | Guest Star | ||
| Chris Robinson | Guest Star |