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Ultraman: 1x29
A Challenge to the Underground
After a gold creature causes a cave-in which traps a miner, the team must travel deep underground in an experimental Mole device that Ito invented. However, soon the rescuers need rescuing when they confront the monster Goldon.
1 - 1Ultra Operation No. 1 Jul. 17, 1966- 1 - 2Defeat the Invaders! Jul. 24, 1966
- 1 - 3Sally Forth, Science Patrol! Jul. 31, 1966
- 1 - 45 Seconds Before The Big Explosion! Aug. 07, 1966
- 1 - 5Treasure of the Miloganda Aug. 14, 1966
- 1 - 6The Coast Guard Command Aug. 21, 1966
- 1 - 7The Blue Stone of Baradhi Aug. 28, 1966
- 1 - 8The Lawless Monster Zone Sep. 04, 1966
- 1 - 9Operation: Lightning Speed Sep. 11, 1966
- 1 - 10The Mysterious Dinosaur Base Sep. 18, 1966
- 1 - 11The Ruffian from Outer Space Sep. 25, 1966
- 1 - 12The Cries of the Mummy Oct. 02, 1966
- 1 - 13Oil S.O.S. Oct. 09, 1966
- 1 - 14The Pearl Oyster Protection Directive Oct. 16, 1966
- 1 - 15The Terrifying Cosmic Rays Oct. 23, 1966
- 1 - 16The Science Patrol to Outer Space Oct. 30, 1966
- 1 - 17Passport to Infinity Nov. 06, 1966
- 1 - 18The Brother from Another Planet Nov. 11, 1966
- 1 - 19The Demons Once More Nov. 20, 1966
- 1 - 20Terror on Route 87 Nov. 27, 1966
- 1 - 21Break Through the Smoke! Dec. 04, 1966
- 1 - 22The Underground Destruction Work Dec. 11, 1966
- 1 - 23My Home is Earth Dec. 18, 1966
- 1 - 24The Undersea Science Base Dec. 25, 1966
- 1 - 25Mystery Comet Tsuifon Jan. 01, 1967
- 1 - 26Monster Majesty (1) Jan. 08, 1967
- 1 - 27Monster Majesty (2) Jan. 15, 1967
- 1 - 28Human Specimens 5 & 6 Jan. 22, 1967
- 1 - 29A Challenge to the Underground Jan. 29, 1967
- 1 - 30The Snowy Mountain of Illusions Feb. 05, 1967
- 1 - 31Who Has Come? Feb. 12, 1967
- 1 - 32The Endless Counterattack Feb. 19, 1967
- 1 - 33The Forbidden Words Feb. 26, 1967
- 1 - 34Gift From the Sky Mar. 05, 1967
- 1 - 35The Monster Graveyard Mar. 12, 1967
- 1 - 36Don't Shoot, Arashi! Mar. 19, 1967
- 1 - 37The Little Hero Mar. 26, 1967
- 1 - 38The Spaceship Rescue Command Apr. 02, 1967
- 1 - 39Farewell, Ultraman! Apr. 09, 1967
