The Man From Atlantis

Dr. Merrill and Dr. Simon rescue Mark after he is washed up on the beach.

While investigating the disappearance of three Coast Guard scuba divers, Mark meets some people who might be able to help him find his origins.

Mark recovers a NASA probe and is taken over by alien spores who force him to help return to outer space.

A mad lady scientist kidnaps Dr. Merrill and it is up to Mark to save her.

Mark must surrender himself to Mr. Shubert to keep him from melting the polar ice caps.

An invention designed to collect material from the ocean floor develops a mind of its own and threatens to destroy all sea life.

Mark and Mr. Shubert's daughter recover a dangerous statue.

A whirlpool transports Mark to another world and he finds Muldoon trying to steal the gold from it.

Mr. Shubert tries to extort money by threatening to unleash a giant jellyfish on a swim meet.

Mark is transported to the Old West and mistaken for an outlaw.

Mr. Shubert desire for energy crystals threatens the air breathing people who live beneath an underwater force field that has created an inhabitable underwater land.

Mark travels back in time and gets involved in the romance between Romeo and Juliet.

C.W. develops a Jekyll and Hyde personality after swallowing a mysterious liquid.

Mark encounters Muldoon, who with his sea monster, has been making island natives sacrifice young girls to him.

Mark runs into an elf whose touch causes people to revert to their childhood.

A group of pirates catch a sea nymph and use her to capture a man who designed vital defense equipment.

Two carnival workers try to get Mark to help them rob a museum of priceless Egyptian artifacts after they learn of his underwater abilities.