Primus Season 1 (1971)

Ten Minutes of Eternity

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.

Deepest of the Deep

Trial and Terror