Playback serverIf a title won’t play, switch servers.
Astro Boy
Season 1 · Episode 99
A Deep Deep Secret
0.027mDecember 19, 1964
Colon-bu-bu, the explorer of the underground state of Chombo, heads for the ground hoping to see a new world. Then he meets Cobalt and takes him underground as prisoner.
Episodes
- Episode 1The Birth of Astro Boy
- Episode 2Colosso
- Episode 3Expedition to Mars
- Episode 4One Million Mammoth Snails
- Episode 5The Sphinx
- Episode 6Zero, the Invisible Robot
- Episode 7Captain Atom
- Episode 8The Spirit Machine
- Episode 9The Deep Freeze
- Episode 10Strange Voyage
- Episode 11Time Machine
- Episode 12Cross Island
- Episode 13The Eyes of Christ
- Episode 14The Artificial Sun
- Episode 15Grass Boy
- Episode 16Silver Comet
- Episode 17Hullabaloo Land
- Episode 18Gangor the Monster
- Episode 19The Cosmic Giant
- Episode 20Toxor, the Mist Man
- Episode 21Satellite R-45
- Episode 22Sea Serpent Isle
- Episode 23The Deadly Flies
- Episode 24Kingdom of the Sea
- Episode 25The Deep-Underground Tank
- Episode 26Don Tay's Infernal Machine
- Episode 27Pearl People
- Episode 28The Wacky Machine
- Episode 29Memory Day
- Episode 30Secret Agent 3-Z
- Episode 31Mysterious Cosmic Rays
- Episode 32Hot Dog Corps
- Episode 33The Three Magicians
- Episode 34Beast From 20,000 Fathoms
- Episode 35Planet X
- Episode 36The Elixir of Life
- Episode 37The Strange Birthday Present
- Episode 38The Disturbed Small Planet
- Episode 39The Mysterious Cat
- Episode 40The Abominable Snowman
- Episode 41Deadline to Danger
- Episode 42The Yellow Horse
- Episode 43Ditto
- Episode 44Cleopatra's Heart
- Episode 45Return of Cleopatra
- Episode 46The Phantom Space Ship
- Episode 47The Gigantic Space Crab
- Episode 48The Great Space Horse
- Episode 493D Tee Vee
- Episode 50Westward, Ha!
- Episode 51Jimbo the Great
- Episode 52Snow Lion
- Episode 53Goodbye 1963
- Episode 54Duel on the Alps
- Episode 55Rejuvenating Gas
- Episode 56The Moon Monsters
- Episode 57Astro Boy goes to School
- Episode 58The Island of Mystery
- Episode 59The Super Duper Robot
- Episode 60Dogma Palace
- Episode 61Space Parasites
- Episode 62The Haunted Ship
- Episode 63The Man-Made Iceberg
- Episode 64Vampire Vale
- Episode 65The Terrible Tidal Wave
- Episode 66Vikings
- Episode 67The Devil Doll
- Episode 68Dinosaur Dilemma
- Episode 69The Clock Tower Mystery
- Episode 70The Flower Monster
- Episode 71Attack From Space
- Episode 72Shipwreck in Space
- Episode 73Big Titan
- Episode 74Mission to the Middle of the World
- Episode 75Inca Gold Fever
- Episode 76The Monster Machine
- Episode 77The Hooligan Whodunit
- Episode 78Funnel to The Future
- Episode 79Super Brain
- Episode 80Mighty Minute
- Episode 81Dream Machine
- Episode 82The Robot Olympics
- Episode 83Dunder, Bird of Doom
- Episode 84Dolphins in Distress
- Episode 85The Mad Beltway
- Episode 86The Terrible Time Gun
- Episode 87Space Princess
- Episode 88Mighty Microbe Army
- Episode 89Horrible King Horrid
- Episode 90Mystery of the Amless Dam
- Episode 91Galeom From Galaxy G
- Episode 92The Three Robotiers
- Episode 93Brother Jetto
- Episode 94Angel of the Alps
- Episode 95Magic Punch Card
- Episode 96The Great Rocket Robbery
- Episode 97Contest in Space
- Episode 98Gift of Zeo
- Episode 99A Deep Deep Secret
- Episode 100The Wonderful Christmas Present
- Episode 101Uncharted World
- Episode 102Jungle Mystery
- Episode 103The Terrible Spaceman
- Episode 104The Devil’s Balloon
- Episode 105General Astro
- Episode 106The Mighty Mite From Ursa Minor
- Episode 107Mystery of the Metal Men
- Episode 108Super Human Beings
- Episode 109Phoenix Bird
- Episode 110Menace from Mercury
- Episode 111Robot Polymer
- Episode 112Samson’s Hair
- Episode 113Dangerous Mission
- Episode 114Metro Monster
- Episode 115The Big Runaway Safe
- Episode 116The Greatest Robot on Earth (part one)
- Episode 117The Greatest Robot on Earth (part two)
- Episode 118Robot Grabby
- Episode 119Planet 13
- Episode 120Time Hunter
- Episode 121Prisoners in Space
- Episode 122The Monster Mantler
- Episode 123Captain Dog
- Episode 124Double trouble
- Episode 125Find the Bacteria
- Episode 126Roboids
- Episode 127The Experimental Robot
- Episode 128Treasures of the Inca Empire
- Episode 129Atom vs. Atom
- Episode 130The Storm on Mars
- Episode 131The Moon Champion
- Episode 132Prince Louis
- Episode 133Revenge After Ten Years
- Episode 134Operation Escape
- Episode 135The Robot-Dog Backy
- Episode 136Inspector Jaguar
- Episode 137Little Cooley
- Episode 1381 Long Day
- Episode 139Atom Stolen
- Episode 140The King and Atom
- Episode 141The Locomotive March
- Episode 142Minya’s Star
- Episode 143Bird Street Story
- Episode 144Lost Friendship
- Episode 145Atom in the Deep Sea
- Episode 146Report from the Future
- Episode 147Mid-air Screen
- Episode 148Robio and Robiet
- Episode 149The Can Capriccio
- Episode 150Miss Magnet
- Episode 151Lonely Atom
- Episode 152The Robot Bombs
- Episode 153The Red Merry-Go-Round
- Episode 154Blue Bird Story
- Episode 155The Crazed Boundary
- Episode 156Robot Mayor
- Episode 157Gypsy’s Star
- Episode 158Funny Companion
- Episode 159Devil and Angel
- Episode 160The Golden Flute
- Episode 161Dream-Selling Aliens
- Episode 162Operation Candy
- Episode 163Road to Another World
- Episode 164The Space Spider
- Episode 165A Great Fuss Over Babies
- Episode 166The Jewel-Eating Monster
- Episode 167Plenty of Balloons
- Episode 168The Island That Jumped Up
- Episode 169Gift from the Future
- Episode 170Two Princesses
- Episode 171Kutcher Forever
- Episode 172The Herald Brothers
- Episode 173Robotty
- Episode 174The Great Submarine Canal
- Episode 175Robot Wars (part one)
- Episode 176Robot Wars (part two)
- Episode 177The Gigantic Robot
- Episode 178Chi-tan’s Nighttime Adventure
- Episode 179Blue Horseman (part one)
- Episode 180Blue Horseman (part two)
- Episode 181Ghost Manufacturing Machine
- Episode 182Demented Cobalt
- Episode 183Japanese People from Space
- Episode 184Time War
- Episode 185Star of Africa
- Episode 186Monsters Come out at Night
- Episode 187Baily’s Legend
- Episode 188Tengu of Kurama
- Episode 189Confusion at the Shooting Studio
- Episode 190Miracle of Mesopotamia
- Episode 191Wandering Roppi
- Episode 192Medusa’s Mansion
- Episode 193The Greatest Adventure on Earth