Ido zero daisakusen
Three men (Dr. Ken Tashiro, Dr. Jules Masson, and Perry Lawton) are trapped in a bathysphere due to seismic activity. They are rescued by the crew of the supersubmarine Alpha, captained by Craig Mackenzie (Cotten), who they learn is over 200 years old (and that the Alpha was launched in the early 19th century). Mackenzie takes them to Latitude Zero to deal with the serious injuries of Dr Masson. While returning to Latitude Zero, they are attacked by a rival supersubmarine, the Black Shark, captained by Kuroi (Hikaru Kuroki), who works for a rival of Mackenzie, Dr. Malic (Romero), who is also over 200 years old and has a base at Blood Rock.
Latitude Zero is a paradise hidden fifteen miles below the surface at the intersection of the Equator and the International Date Line. Gold is plentiful there and is used for protective clothing by the island's newcomers, while those who arrived in the 19th century prefer to dress as they are accustomed, as no one ages or dies. Diamonds are very common and used only in industrial use.
Dr. Malic, however, wishes to destroy the paradise of Latitude Zero, and uses giant rats and anthropomorphic bats in addition to James Bond-style devices against the undersea kingdom. Worst of all, after a cruel experiment grafting the wings of an eagle to a lion, he removes the brain of the unsuccessful Kuroi and places her brain in the creature. This proves to be his undoing when, at a critical moment, Kuroi turns against Malic as he prepares to fire an energy cannon at the escaping visitors, causing their destruction.
Of all the visitors to Latitude Zero, only Perry Lawton (Jaeckel), a journalist, wishes to return home. He is picked up by a US Navy vessel and meets a Commander Glenn Mackenzie (Cotten again), and is put in the care of Lt. Hastings (Romero again). Horrified at whom he sees, Lawton discovers his film is ruined and when he opens the pouch where he placed his complimentary diamonds, he finds tobacco. Just as he is about to resign himself to the fact that his adventure never occurred, the ship is wired a message stating that a cache of diamonds has been deposited in his name in a safe deposit box in New York City.
psychedelic