Season 1

01 Ten Minutes of Eternity Episode 115th September 1971 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. 02 Deepest of the Deep Episode 222nd September 1971 03 Trial and Terror Episode 329th September 1971 04 Kiss of Life Episode 47th October 1971 05 Underwater Getaway Episode 521st October 1971 06 The Phantom Horse Episode 628th October 1971 07 Bearer of Light Episode 73rd November 1971 08 Oil Rig Episode 810th November 1971 09 Breaking Point Episode 924th November 1974 10 The 65th Minute Episode 101st December 1971 11 Blade of Fire Episode 128th December 1971 12 Tektite #1 Episode 1315th December 1971 13 49 Sharks Episode 1422nd December 1971 14 The Sea is Boiling Hot Episode 1529th December 1971 15 Death Tide Episode 165th January 1972 16 Sea Serpent Episode 1712th January 1972 17 The Sniper Episode 1819th January 1972 18 The Steel Fish Episode 1921st April 1972 19 Black Diamonds Episode 2028th April 1972 20 Infrared Episode 215th May 1972 21 Nuclear Black Market Episode 2212th May 1972 22 The Black Hole Episode 2319th May 1972 23 Trapped, Part One Episode 2426th May 1972 24 Trapped, Part Two Episode 252nd June 1972 25 The Net Episode 269th June 1972