Astro Boy
At the Ministry of Science, fervent Professor Ochanomizu alongside his coworkers strive to reactivate Atom-the first robot with a human heart. Atom is the masterpiece of enigmatic Professor Umatarou Tenma, who built the android to replace his deceased son Tobio. However, while Tenma inexplicably shut down his brainchild and disappeared, Ochanomizu refuses to let such a major breakthrough in science go to waste. Despite having the appearance of a nine-year-old, Atom not only possesses incredible strength and intelligence, but he is also endowed with a remarkable conscience and compassion that rivals humans. Sadly, the mechanical boy soon faces rejection and learns that not everyone is as welcoming as Ochanomizu. Although automatons have integrated into society, they are accepted only as tools and even seen as an upcoming threat to mankind's dominion. Dreaming of a world where people and robots can prosper together, Atom dedicates his existence to protecting the lives of both and inspiring them to form genuine bonds.
- 2003-2004
- 1 season
- Kids' WB
- Animation, Action & Adventure, Comedy, Family, Fantasy, Science Fiction
- TV-Y7
At the Ministry of Science, fervent Professor Ochanomizu alongside his coworkers strive to reactivate Atom-the first robot with a human heart. Atom is the masterpiece of enigmatic Professor Umatarou Tenma, who built the android to replace his deceased son Tobio. However, while Tenma inexplicably shut down his brainchild and disappeared, Ochanomizu refuses to let such a major breakthrough in science go to waste. Despite having the appearance of a nine-year-old, Atom not only possesses incredible strength and intelligence, but he is also endowed with a remarkable conscience and compassion that rivals humans. Sadly, the mechanical boy soon faces rejection and learns that not everyone is as welcoming as Ochanomizu. Although automatons have integrated into society, they are accepted only as tools and even seen as an upcoming threat to mankind's dominion. Dreaming of a world where people and robots can prosper together, Atom dedicates his existence to protecting the lives of both and inspiring them to form genuine bonds.
Season 1 Episode Guide
50 Episodes 2003 - 2004
Episode 1
Power Up!
Sat, Jan 17, 2004 20 mins
Dr. O'Shay activates Astro by drawing all of the city's power and using it to jolt Astro to life. But the power surge overloads the Metro City Power System, turning Magnamite, the robotic power-controller, into a robotic menace. When Magnamite comes crashing across the city like a huge mechanical octopus, Astro must master his amazing powers quickly in order to save the city from the rampaging robot.
Episode 2
Robotto Booru
30 mins
When a suspicious robot-dog leads Atom to watch a game of Robot Ball, he looks forward to a fun day at the ballpark. Instead, the game turns chaotic when the robot players start destroying the stadium and threatening the human spectators. Atom must find a way to save the humans and get the robot athletes back under control.
Episode 3
Atomu uchuu e iku
30 mins
On Deimos, one of the two moons of Mars, is a team of automaton mining robots. These robots suddenly stop following their human foreman's orders and begin mysteriously digging on their own. Professor Ochanomizu is sent with the investigation crew on a spacecraft to get to Deimos. Unfortunately, Atom has snuck aboard and is determined to help.
Episode 4
Denkou
20 mins
The evil Skunk Kusai tricks Denkou, an "invisible robot," into committing a string of robberies. Atom soon realises that Denkou is not bad, she just doesn't know the difference between right and wrong -- and Atom is the only one who can teach her.
Episode 5
Robotto noujou o sukue!
30 mins
A girl named Mimi tracks down Atom and asks him for help saving her family's farm. The farm, in Rainbow Canyon, has been subject to numerous terrible storms. One of the farmhands, Katari, is misusing the weather tower built by Mimi's grandfather, to terrorize the robots working on the farm.
Episode 6
Birth of Atlas
20 mins
Dr. Tenma builds a powerful robot named Atlas whose abilities rival Astro's. But Atlas has a rebellious nature and begins to destroy Metro City. Astro must save the city from Atlas, while beginning to learn the secrets of his own past.
Episode 7
Atomu VS Atorasu
20 mins
As Atlas continues his rampage, Astro learns the truth about his own past. With his memory circuits reactivated, Astro remembers being created, rejected, and abandoned by Dr. Tenma. Astro now must face difficult questions about his own identity and his ultimate destiny.
Episode 8
Robotto chou tokkyuu
20 mins
When Kato hides a hyper-accelerator virus on the robotic super train Neon Express, it sends the train and its passengers speeding out of control. Astro must rescue the passengers and prevent the train from crashing into the center of Metro City.
Episode 9
Furanken
20 mins
A mysterious robot terrifies humans as he hunts for scrap robot parts and uses them to rebuild his own malfunctioning system. The police target the robot for destruction, but he may not be the "evil robot" he appears to be, and Astro must uncover the truth before it's too late.
Episode 10
Kanaboshi robotto shuurai!
30 mins
An army of ice-manipulating robots live in a colony under the sea, convinced they are living on Venus. The robots are waiting for their creator to return and give them orders. Dr. Tenma, who bears a resemblance to the robots' creator, leads them out of the sea and into Metro City in an attempt to freeze the city.
Episode 11
Robotto saakasu ga yatteki ta!
30 mins
Astro and Ochanomizu visit the city of Bella Notte. They encounter a local robot circus with one member, Reno, whom is actually a human boy disguised as a robot. The authorities try to take Reno away from his robot family, and the circus goes on the run.
Episode 12
Yomigaetta Janbo
30 mins
Skunk Kusai is finally jailed, while Ms. Midori takes her students to an amusement park. While there, she tells Atom about Jumbo, an enormous grounded robot at the seaside. Midori and her family have long known Jumbo and consider him a distant friend. However, Skunk's henchmen hijack Jumbo to use him to bust their boss out of jail.
Episode 13
Uran tanjou
30 mins
Professor Ochanomizu presents Atom with a special gift, a younger sister named Uran. She turns out to be a handful even for Atom, but has her own powers, mainly communicating with animals. Uran begins to investigate a strange phenomenon that is antagonizing birds in the area, but she runs afoul of Katari and Atom must rescue her.
Episode 14
Mikuro no dai bouken
30 mins
Something goes wrong with Uran's inner circuitry after a trip through Metro City. After she falls ill with a computer virus, a strange scientist named Dr. Minimini confronts Ochanomizu and volunteers his own shrinking technology. Atom must operate a tiny version of himself to go into Uran's head and stop the virus.
Episode 15
Jinkou chinou o mamore!
30 mins
Atom must stop Erasabot from sucking out the artificial intelligence from all the robots in Metro City.
Episode 16
Yami no robotto hantaa
20 mins
The Metro City Police Department starts a special task force - the Anti-Robot Robot Squad - for confronting robot criminals. The leader, Delta, is standoffish towards Atom but he is still determined to help him and his squad to track down the robot hunters.
Episode 17
Chijou saikyou no robotto
30 mins
Pluto, one of the strongest robots Metro City has ever seen, has vowed to become the supreme robot champion of the world. One by one, he challenges and defeats his rivals, gaining their special powers and abilities as he beats them. Now, even though Atom has said he won't fight, he is the only one left who can stop Pluto.
Episode 18
Pluto Never Die
30 mins
Atom and Uran convince Pluto to stop his destructive ways. But now Pluto's inventor, Shadow, produces a more wicked, more powerful version of Pluto called Dark Pluto. When Dark Pluto attacks, there's only one way Atom can defeat the evil robot: with Pluto's help.
Episode 19
Robotto booi
30 mins
Atom's new human friend Tatsuo loves robots so much that he dresses up in scrap metal and pretends that he IS a robot. But when Tatsuo tries to use his "robot" powers to rescue his mother from a space shuttle accident, it's up to Atom to save them both.
Episode 20
Eien no shounen
30 mins
One day in a Metro City park, a Peter Pan picture show is screened to children. Strangely, after the show, many of the children who attended go missing.
Episode 21
Mizumi no kaibutsu
30 mins
When the land around Dragon Lake is poisoned and begins to die, Atom must find the source of the poison. When he gets there he meets the eccentric explorer Numata and they face-off against the toxic Dark Girls in a fight to save Dragon Lake.
Episode 22
Sayonara Purinsesu
30 mins
Young Princess Kaaya a heir to an South Asian kingdom that has just integrated robots comes to Metro City to explore its technology. Her carers will not let her roam around freely due to her celebrity status as a princess. Atom, Reno, and their friends help Kaaya and his friends disguise Kaaya as a civilian and show her around town.Meanwhile, her vengeful cousin Zedo is trying to steal her pendant so he can overtake the throne. Atom and Reno try to help Kaaya evade Zedo's henchmen.
Episode 23
Ushinawareta kioku
20 mins
When Astro gets damaged saving the earth, he finds himself lost and without memories in an unknown land. A man with a shadowy past will help him recover, but will Astro be ready on time to save the earth from a falling satellite and clean the name of this new friend?
Episode 24
Bea-chan
30 mins
When Shadow unleashes an army of mind-controlling teddy bears on Metro City, it's up to Atom to stop them before they take over the entire population.
Episode 25
Moshimo namida o nagasetara
30 mins
An underground city threatens the environment, so the environment fights back--tree roots attack the city and its people. Atom must restore the delicate balance of nature to save the humans.
Episode 26
Aokishi tojo
20 mins
Astro's new human friend Matthew loves robots so much that he dresses up in scrap metal and pretends that he IS a robot. But when Matthew tries to use his "robot" powers to rescue his mother from a space shuttle accident, it's up to Astro to save them both.
Episode 27
Mei tantei higeoyaji
30 mins
Atom partners with Yuko's Uncle Shunsaku 'Mustachio' Kisaragi to solve a series of baffling robberies involving a dragon-like robotic monster.
Episode 28
Uchu puranto no kiki
20 mins
A power station orbiting the Earth is set to self-destruct, and Astro partners with the Blue Knight to try to save the robots. They uncover a secret regarding the corrupt humans who caused the danger.
Episode 29
Uran to mei tantei
21 mins
Uran is jealous of her big brother's super-hero status, so she joins Detective Shunsaku 'Mustachio' Kisaragi . They try and solve a strange case involving a bird-like phantom that appears throughout the city.
Episode 30
Chitei tanken
20 mins
Astro joins an expedition to the center of the earth, even though Damon, the leader of the expedition, tells him that he doesn't trust robots. When they reach a dazzling cave complex deep within the Earth, one of Damon's own team members mutinies, putting
Episode 31
The Case of the Phantom Fowl
20 mins
Professor Ochanomizu drives Atom, Uran, and a colleague to a seaside Cameroon laboratory. Reno is working at the lab, and has just finished building Gunon, a robot dolphin. Gunon is supposed to do deep sea excavations, but Gunon's guidance system is so sharpened that he is afraid of everything.
Episode 32
Aokishi no himitsu
20 mins
Illegal robot fights are being staged in secret locations to entertain spectators. When Astro and the Blue Knight try to stop the battles, they are forced to fight each other. As they prepare for battle, Astro learns the truth about the Blue Knight's past
Episode 33
Yosei monogatari
20 mins
Astro and his friends befriend Nina, a spoiled little girl who has everything money can buy. But just as their friendship begins to grow, the gang discovers a mysterious "phantom machine" that is being used in a series of Metro City robberies. Astro must
Episode 34
Shape Shifter
Fri, Oct 9, 2026 20 mins
Lumanite is a rare and valuable substance recently discovered on the moon. Now, a mysterious shape-shifter is stealing all the lumanite on earth and Astro is called in to investigate.
Episode 35
Atomu tai Rokku
20 mins
After being defeated by Astro, Rock is back and looking for revenge--this time he's trying to capture The Firebird, an ultra-advanced space-being who guards the secrets of the universe.
Episode 36
Koisuru robotto
20 mins
Astro goes to a space camp to work with a group of students on the special exploration ship Falcon II.
Episode 37
Atorasu gyakushu
30 mins
The anti-robot forces recover Atlas from space, and install a mind-control device to turn him back into an attack robot. Once again, Atom is forced to fight his old ultra-powerful nemesis.
Episode 38
Eimi no negai
21 mins
Astro and the Blue Knight must help Emily, a young robot girl whose parents have been captured by the pirate-like Space Raiders.
Episode 39
Taimuhanta
21 mins
Hunters from the future are stealing animal DNA from different time periods in order to enhance their own powers. When Zoran is accidentally caught in the hunters' time machine and transported back to the Stone Age, it's up to Astro to rescue her.
Episode 40
Escape from Volcano Island
20 mins
Astro has been nominated for the "Robot of the Year" award--but the ceremony is interrupted when Drake and his anti-robot group attack the ship.
Episode 41
Kyojin no kioku
20 mins
Astro accompanies Yuko on an expedition to the arctic to find a lost robot who was part of a special space exploration team lead by Yuko's father.
Episode 42
Koutetsu tou no tatakai
20 mins
The Blue Knight commands a spacecraft carrying hundreds of enslaved robots and takes them to Steel Island, a seabound airbase operated by Shadow. In Metro City, Blue Knight's popularity soars among robots while humans begin to fear AI robot rebellion. Lamp and Dr. Tenma team up to stage an attack on AI robots to lure Atom to Steel Island.
Episode 43
Undercover
Fri, Oct 9, 2026 20 mins
A humanoid robot named Klaus is used as an undercover operative for the authorities. One day, Klaus suddenly goes rogue and removes his police transmitter. However, removing this device will automatically trigger a software virus that will render the police robot inoperable. Atom and Delta race against time to find Klaus and give him the virus antidote
Episode 44
Into the Dragon's Lair
20 mins
Astro and his friends travel to Princess Abby's homeland of Mayura. When a giant dragon is spotted flying over the kingdom and Princess Abby's younger brother disappears, Astro must solve the mystery.
Episode 45
Kakumei zenya
20 mins
A GP3 robot named Jake is wrongly accused of harming Hannah, a human girl. When Hannah's enraged father, the powerful General Red, orders that Jake and all GP3 robots be rounded up and dismantled, The Blue Knight ignores Astro's pleas and attacks the huma
Episode 46
Robotania kenkoku
20 mins
The Blue Knight gathers with other robots who have turned their backs on humanity.
Episode 47
Kessen! nankyokutairiku
20 mins
General Red, the leader of the human military forces aligned against The Blue Knight is preparing to fire the Pulsar Laser Cannon, a super-laser beam that will destroy Robotonia and all of its robots. Astro and The Blue Knight must join forces to destroy
Episode 48
Ashita e no tabidachi
20 mins
When I was appointed captain of a ship bound for Mars, I knew I had my work cut out for me. But when a stowaway gave me some secret information I knew it was going to be more dangerous than I thought. A survivor from an earlier mission told of dangerous aliens who planned to take over Mars and then Earth.
Episode 49
Atomu fukkatsu
20 mins
Atom remains horribly damaged after the siege on Robotonia. Despite Professor Ochanomizu's efforts, he cannot seem to revive Atom, and reluctantly lets Dr. Tenma rebuild him.
Episode 50
Saigo no taiketsu
20 mins
After Astro regains his memory and returns home to Dr. O'Shay, Dr. Tenma vows revenge and stages a ferocious high-tech attack on the Ministry of Science. Can Astro reason with him in time to save the Ministry?