Mighty Jack
Reportedly, Eiji Tsuburaya considered this series his masterwork because the focus was on the people, rather than on the vehicles and special effects (the show never had any monsters or aliens, as his more famous shows "Ultra Q", "Ultraman" and "Ultra Seven" did). This focus on the people was similar to the works of Gerry Anderson, of which Tsuburaya was a big fan. The Mighty Jack mecha/HQ featured in this series also has some similarities to Tsuburaya's previous TV masterpiece, "Ultra Seven". Even for the original series of 13 one hour-long episodes, the ratings were  low. The follow-up series, "Fight! Mighty Jack", fared better in the ratings, perhaps because of its inclusion of monsters and aliens, rather than purely human evildoers like Q. The insignia of the titular heroic spy team has also become the current logo for Tsuburaya Productions. Plot. "Mighty Jack" is the name of both a top-secret international peacekeeping organization's 11 agents, and the technologically advanced flying submarine ""Mighty-Gō"" they use to fight the plots of the terrorist organization "Q". Section::::"Fight! Mighty Jack". The more comical sequel series, , aired on the same network from July 6 to December  28, 1968, with a total of 26 half-hour episodes, equaling the original in length. This series has several humorous references to the early Ultra Series. Section::::"Mighty Jack" in the U.S.. In 1986, American producer Sandy Frank took the first and sixth episodes of "Mighty Jack" (without any of the episodes that were released in between or afterward) and combined them into a dubbed feature-length film of the same name. The movie gained its widest exposure in the United States when it was shown as a "Mystery Science Theater 3000" episode on Comedy Central (originally shown on the UHF  station KTMA TV 23 during the show's KTMA season).