Ultraman
Season 1, Episode 29: A Challenge to the Underground
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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.
All Episodes - Season 1
Episode 1
Ultra Operation No. 1
Episode 2
Defeat the Invaders!
Episode 3
Sally Forth, Science Patrol!
Episode 4
5 Seconds Before The Big Explosion!
Episode 5
Treasure of the Miloganda
Episode 6
The Coast Guard Command
Episode 7
The Blue Stone of Baradhi
Episode 8
The Lawless Monster Zone
Episode 9
Operation: Lightning Speed
Episode 10
The Mysterious Dinosaur Base
Episode 11
The Ruffian from Outer Space
Episode 12
The Cries of the Mummy
Episode 13
Oil S.O.S.
Episode 14
The Pearl Oyster Protection Directive
Episode 15
The Terrifying Cosmic Rays
Episode 16
The Science Patrol to Outer Space
Episode 17
Passport to Infinity
Episode 18
The Brother from Another Planet
Episode 19
The Demons Once More
Episode 20
Terror on Route 87
Episode 21
Break Through the Smoke!
Episode 22
The Underground Destruction Work
Episode 23
My Home is Earth
Episode 24
The Undersea Science Base
Episode 25
Mystery Comet Tsuifon
Episode 26
Monster Majesty (1)
Episode 27
Monster Majesty (2)
Episode 28
Human Specimens 5 & 6
Episode 29
A Challenge to the Underground
Episode 30
The Snowy Mountain of Illusions
Episode 31
Who Has Come?
Episode 32
The Endless Counterattack
Episode 33
The Forbidden Words
Episode 34
Gift From the Sky
Episode 35
The Monster Graveyard
Episode 36
Don't Shoot, Arashi!
Episode 37
The Little Hero
Episode 38
The Spaceship Rescue Command
Episode 39
Farewell, Ultraman!