Tetsuwan Atom (1980)

Synopsis

A wild gang of robots rampage through the city, causing havoc and destruction. Meanwhile, Uran is trying to teach Jump how to do tricks, but gets upset when Jump can't perform one of her tricks. Astro explains that Jump isn't the same as a robot, and Uran becomes upset and keeps Jump out of the house. When she finally relents and lets Jump back in from the rain, she gets angry when he shakes himself off all over her toys. Astro scolds her and tells her of the history between him and Jump. That night, the robot gang attacks Astro's house, grabbing Jump and throwing him into a high rise building. The next morning, Astro discovers the footprints from the robot gang in the yard, and Astro's father tells them that the papers reported on the incident, calling the gang "Robot Vikings". Just then, a neighbor comes to the house, bringing a badly injured Jump with her, frightening Uran and Astro. Determined to confront the Robot Vikings for their crimes, Astro wants to head off to find them, but is stopped by his mother, who tells him that Dr. Elefun is not in town to give his consent to fight. Astro's father hires a temporary robot watchdog, and that night, when the Robot Vikings return, it manages to take out several gang members before getting destroyed. Astro intervenes and damages another member, until the entire gang retreats at the sight of a press helicopter. The police inspector calls Astro the next morning and demands he stay in his home. Disguising himself as a dog, Astro sneaks out to search for the Robot Vikings. When he encounters them, he surprises them all by easily besting them in combat, but they attempt to gain the upper hand and combining themselves into a centipede-like tank robot; Astro manages to trounce them. In a last ditch effort, the leader tries spraying Astro with an adhesive, but Astro manages to drag the entire gang across town and electrocute them, but the gang escapes. Later, Astro phones Uran but is scolded instead by his father, who tells him that Uran is at the vet watching over Jump; she felt remorse for her previous treatment of Jump and does not want to see him die. Tracking the Robot Vikings to a cavern, Astro is shocked to find Livian, Atlas's assistant, encased in a glass coffin. The Robot Viking leader attempts to kill Astro by flooding the cavern with lava, but Astro escapes with Livian, while the Robot Vikings die in the lava. Astro encounters Atlas, who is grateful that he saved Livian, and explains that the Robot Vikings were once his soldiers, but were given the Omega Factor, causing them to rebel. Astro berates him for using the Omega Factor so blindly, but Atlas brushes it off, wishing to repay Astro for his help. Astro asks him to make a medicine to help Jump; although puzzled, Atlas complies and delivers the serum to the vet. Jump recovers from his injuries and returns home to Astro and Uran, who now appreciate his presence more than ever.

(Source: Wikipedia)