Go deeper below the surface than ever before with the adventures of the being who is both human and aquatic. Atlantis survivor Mark Harris (played by Patrick Duffy just before starting his lengthy run on Dallas) breathes underwater, withstands extreme depth pressures and wields superhuman strength. And those astounding abilities are showcased in this 2-Disc Collection containing All 4 Feature-Length TV-Movies (including the Pilot newly remastered for this release). Submerge with Mark and the crew of the Foundation for Oceanic Research submarine Cetacean into a world of science-fiction wonders.