Episode 1: Power Up!
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: Robot Ball
When a friendly robot-dog invites 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!
Episode 3: Astro Goes to Space
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 behaviour before Intergalactic Security exterminates them for disobeying.
Episode 4: Denkou
The evil Skunk tricks Denkou, an “invisible robot, ” into committing a string of robberies. Astro soon realizes that Denkou is not bad, she just doesn’t know the difference between right and wrong -- and Astro is the only one who can teach her.
Episode 5: Save the Robot Factory
An experiment in advanced weather technology has turned a desert canyon into fertile farmland, and proven once again that humans and robots can work well together. But a sudden rash of earthquakes and storms threatens to wreck the project. It`s up to Astro to find out who is behind the evil plan.
Episode 6: Atlas is Reborn
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: Astro vs. Atlas
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: Robot Super-Express
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 centre of Metro City.
Episode 9: Franken-Al
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: Attack of Mars Robot
In order to take advantage of their special freezing powers, Dr. Tenma pretends to be the long-awaited leader of a group of advanced robots. The Robots don`t realize that their freezing functions cause terrible destruction by freezing everything in sight. Can Astro convince the Robots to reject Tenma`s evil influence?
Episode 11: Robot Circus is Here!
Astro becomes friends with Robot Circus`s crew and finds out that Reno is a human. He learns about family bonds by seeing the circus crew protecting Reno from authority. Episode 12: Jumbo Comes Back to Life Skunk reactivates Jumbo, a giant robot and uses him to stage a daring prison break. Astro must stop Jumbo and turn him back into the gentle giant that he really is.