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Series Overview

Color Season Episodes U.S. Season Premiere U.S. Season Finale
1 50 January 17, 2004 October 13, 2007

Season 1 (2003-2004)

Jap.
No.

Eng.
No.

Episode Title

Japanese
Airdate

English
Airdate

Toonami Airdate

01 01 "Power Up!" April 6, 2003 January 17, 2004 March 8, 2004[1]
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 power-controller, into a robotic menace. When Magnamite comes crashing across the city like a huge mechanical octopus, Astro must quickly master his amazing powers in order to save the city from the rampaging robot.
02 02 "Rocket Ball" April 13, 2003 January 24, 2004 March 9, 2004[1]
When a strange robot-dog lures Astro to watch a game of Rocket 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. Astro must find a way to save the humans and get the robot athletes back under control!
03 05 "Destination Deimos" April 20, 2003 March 10, 2004 March 10, 2004[1]
On Deimos, one of the two moons of Mars, robot miners ignore the orders of their human foreman and mysteriously begin digging on their own. Astro must work fast to discover the cause of the robots' strange behavior before Intergalactic Security exterminates them for disobeying.
04 06 "Into Thin Air" April 27, 2003 March 11, 2004 March 11, 2004[1]
The evil skunk tricks Denkou, an "invisible robot," into committing a string of robberies. Astro soon realizes that Denkou isn't bad, she just doesn't know the difference between right and wrong -- and Astro is the only one who can teach her.
05 07 "Rainbow Canyon" May 4, 2003 March 15, 2004 March 15, 2004[2]
A young girl named Mimi runs into the Ministry of Science asking for help from Astro. She explains that earthquakes and other natural phenomenons are destroying her farm in Rainbow Canyon.
06 03 "Atlas" May 11, 2003 January 31, 2004 March 16, 2004[2]
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 must now face difficult questions about his own identity and his ultimate destiny.
07 04 "Astro vs. Atlas" May 18, 2003 February 7, 2004 March 17, 2004[2]
The fight continues between an angry Atlas and a confused Astro with Atlas beginning to take advantage of Astro in the fight. Who will win?
08 08 "Neon Express" May 25, 2003 March 18, 2004 March 18, 2004[2]
Doctor O'Shay witnesses a flying car crash into the Ministry of Science. A hologram of a clown appears and states that there will be more destruction. Three weeks later, while the Doc is at the unveiling of the robot train, police arrest Kato for the act of destruction. However, they don't realize that he has already hidden a virus on the train. Astro Boy must act before the train crashes.
09 09 "Franken" June 1, 2003 March 22, 2004 March 22, 2004[3]
Two mechanics are tearing apart robots and it's up to Astro to discover what these criminals true goals are.
10 10 "The Venus Robots" June 8, 2003 March 23, 2004 March 23, 2004[3]
Under the control of Dr. Temna, abandoned robots used to cool down Venus arise from deep sea to give "salute" to the Captain, which will freeze Metro City. Can Astro save the city in time, without plunging the city into an ice age?
11 22 "The Robot Circus" June 15, 2003 March 31, 2004
While on vacation, Astro and Dr. O'Shay visit a robot circus where they meet Reno, a robot who turns out to be human!
12 11 "Reviving Jumbo" June 22, 2003 March 24, 2004 March 24, 2004[3]
Skunk tries escaping from prison and almost succeeds until the police finally capture him again. They put him in an even more secure area with tighter security so that he'll have absolutely no chance to escape.
13 23 "Little Sister, Big Trouble" July 6, 2003 April 1, 2004
When Dr. O'Shay creates a little sister named Zoran for Astro, she gets loose and goes out into the city. After making friends with a bird, she finds out what is happening to all of the other birds, and is kidnapped. It is up to Astro Boy to save her and destroy the robot.
14 24 "Micro Adventure" July 13, 2003 April 1, 2004
When a strange virus infects Zoron, Astro must find a way to save her, not knowing that he's being lured into a trap by Dr. MiniMini
15 25 "Only A Machine" July 20, 2003 April 5, 2004
Astro Boy discovers that an evil robot named Erasabot has arrived and has begun to completely destroy the artificial intelligence of all of the robots in Metro City. Now, it's up to Astro to stop Erasabot before all the robots in the city are destroyed by this devious plan for destruction.
16 12 "Robot Hunters" July 27, 2003 March 25, 2004 March 25, 2004[3]
Robot hunters are running loose in Metro City as they deactivate and steal any robot they wish. A new robot police squad is issued, with leader Delta, and their first assignment is to find and capture these hunters.
17 13 "The Rise of Pluto" August 3, 2003 March 29, 2004 June 5, 2004[4]
Dr. Tenma builds his latest strongest robot to date, Pluto. He builds him to destroy all other robots. Pluto's first target ends up at the Rocket Ball Arena, where Harley and his teammates are in the middle of an exciting game.
18 14 "The Fall of Acheron" August 10, 2003 March 30, 2004 June 12, 2004[5]
Zoran gets in the middle of Astro and Pluto's shoot-out, causing her to get hurt. Pluto runs away, promising the next time they meet, he will destroy Astro.
19 26 "Robot Boy" August 17, 2003 April 6, 2004
Astro Boy makes a new human friend named Matthew who is obsessed with robots and likes to pretend that he is one. However, Matthew gets into big trouble when he tries to save his mother from danger using robot abilities he does not actually possess and it's up to Astro to save him
20 27 "Dawn of the Techno Revolution" August 24, 2003 April 6, 2004
Shadow questions Dr. Tenma about Astro leading the robots against the humans, so Tenma gathers all the information to prove once and for all that Astro will side with him and Shadow against mankind
21 15 "Dragon Lake" August 31, 2003 March 24, 2004 June 19, 2004[6]
When the land around Dragon Lake is poisoned and begins to die, Astro must find the source of the poison. When he gets there, he meets the eccentric explorer, Gulliver, and they face off against the toxic Repo Girls in a fight to save Dragon Lake.
22 28 "The Legend of Tohron" September 7, 2003 April 26, 2004
Princess Abby from the Kingdom of Tohron arrives in Metro City to explore the coexistence of robots and humans. She soon joins Astro, Reno and his friends as her personal 'bodyguards' due to The evil Zane, as he follows her from Tohron, looking for a way to steal the princesses' scale of Tohron and gain total control over her father's kingdom!
23 16 "Lost in Outland" September 14, 2003 March 25, 2004 June 26, 2004[7]
An old government war satellite is about to crash back to Earth. It is equipped with a nuclear warhead that could destroy a city and it's heading for Antarctica in three days. The explosion could cause the polar ice caps to melt which would flood the Earth. Astro tries to stop it, but it launches him to the outland and causes him to have amesia.
24 29 "March of the Micro Bears" September 21, 2003 April 26, 2004
To 'help' with Astro's evolution, Shadow uses an old invention from Dr. Tenma. Meanwhile, Astro struggles with his friendship with Kennedy after an incident at a soccer game.
25 17 "Deep City" September 28, 2003 March 29, 2004
Astro and Dr. O'Shay take a visit down to Deep City, designed by Professor Sebastian. It's an underground city where anything and everything goes on. Hannah, the tour guide, show Astro, Dr. O'Shay, and Sebastian the sights in Deep City, accompanied by Mayor Manny.
26 18 "The Blue Knight" October 5, 2003 April 6, 2004
Astro learns about the 'Blue Knight', a mysterious robot that helps other robots that are mistreated by their masters.
27 30 "Old Dog, New Tricks" October 12, 2003 May 26, 2007
A monstrous robotic dragon is terrorizing Metro City, committing a string of strange and confusing robberies. Heroic robot Astro Boy teams up with Wally Kisagari, the uncle of his ally Yuko, to solve the crimes and stop the monster.
28 19 "Hydra-Jacked" October 19, 2003 March 30, 2004
Hydra, an aquatic robot comes to Metro City and destroys the main water unit.
29 31 "The Case of the Phantom Fowl" October 26, 2003 June 2, 2007
After growing jealous of her brother Astro's super hero status, Zoran signs up to help out Detective Wally Kisagari. The duo quickly find themselves in over their heads as they try to solve the case of a flying ghost that appears to be a bird that is terrorizing the entire city.
30 20 "Geo Raider" November 2, 2003 March 30, 2004
The robot-killing robot named, Geo Raider is destroying working robots for Atlas and his crew.
31 32 "Gideon" November 9, 2003 June 9, 2007
Gideon is a timid robot dolphin created to explore underwater. When he hears about the legend of a phantom pirate, however, he's too scared to dive. Astro Boy and friends Reno and Zoran must help Gideon to conquer his fear before the Phantom Pirate attacks.
32 21 "The Secret of the Blue Knight" November 16, 2003 April 30, 2004
While investigating about imprisoned robots on Mars, Astro meets up with the Blue Knight and learns about his origins about why he fights for robots' freedom.
33 33 "Fairy Tale" November 23, 2003 June 16, 2007
A spoiled child named Nina is unsatisfied with the lavish gifts her father buys for her and demands a pet fairy. Meanwhile, criminals are using a "phantom machine" to rob the townspeople. Astro Boy must solve the mystery, while helping Nina to learn the value of friendship.
34 34 "Shape Shifter" November 30, 2003 June 23, 2007
A stone with strange powers arrives from distant space, and it takes the form of earthly animals. After posing as a bear, a mysterious sniper wounds the celestial object, and Astro pursues the criminal. The sniper gets away, and Astro meets Tamami, who is working with Dr. Saruta to unlock the stone's super-human powers. Unfortunately, Sartura works for Mr. Drake.
35 35 "Phoenix" December 7, 2003 June 30, 2007
Rock is once again defeated by Astro Boy. However, this time is different. Rock will not take the defeat lying down, he is out for revenge. Rock thinks that by capturing a Phoenix, victory will be his.
36 36 "Space Academy" December 14, 2003 July 7, 2007
Astro Boy visits a space camp on the Falcon II, a special exploration space ship, in order to work with a gathering of young students. He begins experiencing strange emotions when he is befriended by a girl named Brianna.
37 37 "Atlas Strikes Back" December 21, 2003 July 14, 2007
Atlas, a robot with the ability to defy the rules of robotics and hurt humans, is recovered by the anti-robot forces from space, who manage to install a mind-controlling device to turn him back into an attack robot. Astro, once again, is forced to fight his old and ultra-powerful opponent.
38 38 "Battle-Bot" December 28, 2003 July 21, 2007
A little robot girl named Emily is sent away from her parents, who were taken prisoner the dastardly Space Raiders, a crew of pirates. Astro Boy races to the rescue, aided by his big robot friend, the Blue Knight.
39 39 "Time Hunters" January 11, 2004 July 28, 2007
An ancient hunter finds a time machine and travels to Metro City, looking for a genetically stronger animal to bring back home. He finds a tiger and re-enters the time portal, narrowly escaping Astro's close pursuit. The robot decides to follow the primitive man 10,000 years into the past, where Astro encounters a monstrous woolly mammoth.
40 40 "Escape from Volcano Island" January 18, 2004 August 4, 2007
Because of his humanlike nature, Astro Boy is nominated for the Robot of the Year awards. The award ceremony is disrupted when disaster threatens, however, and Astro Boy must leap into action.
41 41 "Avalanche" January 25, 2004 August 11, 2007
Dr. O'Shay sends Astro to investigate reports of a monster that's terrorizing the villagers at Mt. Elbe. The robot finds the creature and discovers that it's not a monster at all, but rather, a confused reprogrammed robot that was the result of a plasma-wave accident that occurred at the Ministry of Science twelve years ago.
42 42 "Battle of Steel Island" February 1, 2004 August 18, 2007
Robot-hating politician Mr. Drake is once again up to no good. He sends Drake, his loyal henchman, on a Ship to deal with a group of robots as part of his anti-robot campaign. But fortunately, the Blue Knight frees the enslaved robots and places them in their own "Steel Island"- a place where they can be safe from Mr. Drake's nefarious acts.
43 43 "Undercover" February 8, 2004 August 25, 2007
A lifelike humanoid robot, Klaus, is programmed to work as an undercover policeman. When the decision is taken to reprogram him, Klaus must go undercover once more to avoid losing his memories - this time disguising himself as an ordinary human. Can his fellow robot Astro Boy help him?
44 44 "Into the Dragon's Lair" February 15, 2004 September 1, 2007
Astro Boy and his friends are on the search for Princess Abby's younger brother after they notice his disappearance during a visit to Princess Abby's homeland.
45 45 "Night Before the Revolution" February 22, 2004 September 8, 2007
When a robot named Jake is falsely accused of harming a human girl, her father is outraged. He demands that all robots of Jake's type be rounded up and destroyed. Before the order can be enacted, the Blue Knight, another robot, attacks the humans and Astro Boy is swept up in the ensuing robot revolution.
46 46 "Robotonia" February 29, 2004 September 15, 2007
An ancient city filled with robots is discovered in the South Pole. The city of Robotonia is intended to be a safe haven for robots everywhere, that would otherwise not have been able to roam free in the outside world.
47 47 "Showdown in Robotonia" March 7, 2004 September 22, 2007
As General Red and the human military plan to fire the Pulsar Laser Cannon to destroy the robot civilization of Robotonia, Astro and The Blue Knight team up to save the city.
48 48 "Journey to Tomorrow" March 14, 2004 September 29, 2007
The war between humans and robots is raging on and is about to reach a final climax. Astro Boy races to complete a peace agreement to avert the coming tragedy and bring peace to both robots and humans. Meanwhile Drake advances his plans to destroy all robots on the planet.
49 49 "Astro Reborn" March 21, 2004 October 6, 2007
Desperate to repair the relationship between humans and robots, Astro blocks a missile bound for Robotonia. Dr. O'Shay struggles to get him back online, but Dr. Tenma finds a way to repair the unconscious robot. To everyone's surprise, the revived Astro has amnesia, and he now believes that Tenma is his father. Can Zoran help the robot regain its memory?
50 50 "The Final Battle" March 28, 2004 October 13, 2007
Astro regains his full memory and returns home. Enraged, Astro Boy's creator Dr. Tenma begins an attack on the Ministry of Science. It is up to Astro Boy to stop Dr. Tenma's attack and bring humans and robots together.

References

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