From the island of Bardos in the Aegean Sea comes a new threat to humanity in the form of Doctor Hell and his army of mechanical beasts. However, a new hero stands in his way: Mazinger Z, a giant robot built out of the indestructible metal chogokin and equipped with an arsenal of advanced weaponry. Piloting Mazinger Z is hotheaded teenager Kouji Kabuto, who strives to avenge the death of his grandfather and protect Japan from Doctor Hell's forces. (mydramalist.com)
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Koji Kabuto pilots the amazing Mazinger Z for the first time.
Koji and Shiro get to know Sayaka and his father. Sayaka pilots the female robot Aphrodite A and agrees to teach Koji to pilot Mazinger Z.
The boys meet Boss and his gang of thugs and immediately enter into conflict.
Dr. Hell builds a mechanical monster capable of creating optical illusions. After casting Koji Kabuto in a bad light, he sets a trap for Mazinger Z.
Doctor Hell plans a double attack: with the mechanical monster Tsaila he draws Mazinger Z away from the base, and with another robot, Dankel, he attacks the research institute for photoatomic energy.
Baron Ashura hides his male side and explains to the inhabitants of the city that their lives will always be in danger as long as Professor Yumi and Koji continue to fight
Sayaka would like to fight alongside Mazinger Z, so she asks scientists from the research institute to upgrade Aphrodite A
Doctor Hell creates a mechanical monster that can be dismantled and recomposed at a distance, Deimos F3, and instructs Baron Ashura to send it to pieces near the research institute for photoatomic energy.
Soratobu tetsuwan Daian (1973)
- S1E10
Shiro is kidnapped by Baron Ashura and used as leverage against Koji, while Ashura's latest mechanical beast terrorizes the city.
Baron Ashura and the army of Dr. Hell uncover a powerful cannon that once belonged to the Japanese military. Koji and the others attempt to stop them from using the cannon to destroy the Institute.
Dr. Hell develops a gun that can increase an object's size to giant proportions. Baron Ashura uses it on a local student's robotic science project in order to create a giant killer robot to rival the power of Mazinger Z.
The school's winter festival is interrupted by the attack of Baron Ashura's latest mechanical beast. While Aphrodite S does battle against the creature, Koji must fend off Ashura's armored troops as they invade the Kabuto residence.
Mazinger Z battles Dr. Hell's most powerful robot beast yet -- the Spartan K5.
Dr. Hell plans an explosion on Mount Fuji, stimulated by the three mechanical monsters Aeros B1, B2 and B3.
Mazinger Z is seriously damaged in battle against Baron Ashura's latest mechanical beast, giving the enemy an unfair advantage when the beast makes its second attack.
After a failed attempt on Koji's life by Baron Ashura's troops, Dr. Hell unleashes his newest mechanical beast -- a robot with cyclonic powers.
After destroying an entire city, Baron Ashura issues an ultimatum to Dr. Yumi: hand over the Japanium metal or the rest of Japan will suffer the same fate.
Mazinger Z is modified to better function underwater in order to defeat the aquatic robot beast currently destroying all seagoing vessels.
Hikou majuu Debiraa X!! (1973)
- S1E19
Doctor Hell unleashes the Deviler X1, a mechanical beast capable of aerial assaults. Since Mazinger Z does not possess flying capabilities, Koji must come up with a plan to defeat the Deviler X1 from the ground.
A newly-transferred student who is bullied in school is given the chance by Baron Ashura to take revenge on his tormentors by allowing him to unleash Dr. Hell's latest robotic beast.
Goosuto taun no kettou (1973)
- S1E21
Koji, Shiro, Boss and his friends are playing cowboys in the ghost town of Izu when they notice a fire and a mechanical monster arrives, Winder A2
Baron Ashura, in the Salus submarine base, destroys many ships with the mechanical monster Balanger M1 and Mazinger Z enters the sea to find out what it is.
Dam-Dam L2, a new mechanical monster, discovers a Japanium deposit on the outskirts of Oniahara and Mazinger Z manages to put it to flight before it extracts the material.
Mahha kikai juu Jinrai (1973)
- S1E24
Dr. Hell shapes the mechanical monster Jinrai S1, which can fly faster than the sound, and launches it over the city.
Dr. Hell understands that to be as strong as Mazinger Z he has to combine mechanical power with human intelligence and he instructs Baron Ashura to command the mechanical monster Dina V5.
Baron Ashura carries out Dr. Hell's plan which consists in the study of Aphrodite A to build a similar robot and destroy Mazinger Z.
Doctor Hell creates an iron mask with the appearance of Professor Yumi and gives it to Baron Ashura, who kidnaps the real professor.
Dai gyakuten Majinpawaa (1973)
- S1E29
Dr. Hell's new mechanical monster, Grengus C3, has an instrument that can overheat up to 10,000 degrees.
Brutus M3 is Dr. Hell's new mechanical monster who fight with two large diamonds on his chest.
Dr. Hell has three professors kidnapped by the research institute for photoatomic energy making them believe dead, hypnotizes them and puts them in command of the mechanical monsters P1, P2 and P3.
Cerberus J3, Dr. Hell's new flying mechanical monster, attacks the city and Mazinger Z goes to face it.
Mazinger Z can't do anything against the new Baras K9 flying monster, so Professor Yumi takes the first plane to New York and meets Professor Smith for advice.
At the research institute for photoatomic energy, the Jet Scrander is started with the Japanium alloy, which will allow Mazinger Z to fly.
Everyone went to work to rebuild the research institute, but Dr. Hell has launches a new mechanical monster, Desma A1
A couple of bathers, during a speedboat ride on Lake Hamanaka, are terrified of a terrible monster, Granada E3.
Boss and Sayaka are captured by Multicipite Q9.
Dr. Hell implements the Minerva X project, conceived by Professor Kabuto as a partner of Mazinger Z.
Doctor Hell chooses a new right arm: Count Blocken.
Dr. Hell puts an air fortress called Guru at the disposal of Count Blocken.
Koji has been training for several days in the absence of gravity to deal with combat situations in the upper atmosphere of the earth.
An abnormal cloud appears on the radar and Mazinger Z intervenes promptly. Koji chases the cloud, which hides the evil Count Blocken's fortress.
A new mechanical monster, Jyron G1, shows up in front of the research institute but incredibly the enemy waves the white flag.
The new mechanical monster Rod R2 attacks the city and Koji and Sayaka don't hesitate to leave. The new robot runs on solar energy and Aphrodite A is immediately split in two.
It is the tenth anniversary of the founding of the Research Institute for Photoatomic Energy and a reception is held where major scientists have been invited.
Dr. Hell intends to blow up the research institute with a cobalt bomb and sends two twin robots, Brozas S1 and S2.
Two cargo ships are sunk by yet another mechanical monster. Mazinger Z must intervene.
The three professors begin to make the Boss automaton while a new mechanical monster arrives from the sea.
A modular mechanical monster collides with Boss Robot near the lake.
Baron Ashura attempts a new strategy by covering all the walls of the city with posters offering a million dollars for Koji capturing.
Yet another mechanical monster arrives at the port of a nearby city. Mazinger Z and Aphrodite must fight the new enemy.
During a night patrol, Boss Robot encounters a mechanical monster capable of a double transformation.
Ashira's latest mechanical monster strikes in a very cold winter, in which the temperature limits the photoatomic energy that feeds Mazinger Z.
A heavy snowfall puts the radar out of use and the enemies take advantage of it to send another mechanical monster.
Boss and his gang are skiing in the mountains when they get into trouble, Mazingee Z has to act.
Dr. Heru Nippon senryou!! (1973)
- S1E57
When Mazinger Z and Koji are captured by Bason Ashura, Sayaka and Boss head out to rescue them.
Zensen kichi jigoku jou!! (1974)
- S1E58
Count Brocken keeps the Photon Power Lab distracted while Baron Ashura sets up a base on a remote island within striking distance of Tokyo.
Sayaka and Boss do their best to keep Titan G9 in check while everyone rushes to get Mazinger Z back up and running.
From Dr. Hell's new base, Count Brocken launches missiles into the Photon Power Lab. Koji tries to figure out where the missiles are coming from.
Shiro meets a pretty little girl in the forest, named Lorelei. She introduces him to her father, a frightening looking man named Schtroheim Heinrich.
After Boss hounds the researchers, they finally agree to try to upgrade Boss Borot so it can fly.
Hitomi, the girl who works for the laundry service used by the Photon Power Laboratory, seems to be up to something.
Three convicted murderers escape prison and head straight for the Photon Power Laboratory. Not only are they desperate, they're also armed.
For his latest dastardly plan, Dr. Hell releases an army of bomb-equipped balloons aimed straight for mainland Japan.
Dr. Hell orders Baron Ashura and Count Brocken to work together to use the Jenoba M9 against Mazinger Z.
Koji brings a weak, beautiful woman back to the lab to nurse her back to help, but there's something strange and sinister about her.
After Dr. Hell expresses his disappointment in his underlings, Count Brocken sends out the Skeleton 07 to prove his worth.
Baron Ashura sends a mechanical beast able to emit fiery hot flames from its mouth to melt down and destroy the Photon Power Laboratory.
With Dr. Yumi taking Mazinger Z out of commission for improvements, it falls to Sayaka and Boss to protect the Photon Power Laboratory.
Dr. Yumi unveils plans for Mazinger Z's new and improved Hover Pilder, and Koji is impressed.
Archduke Gorgon wants to immediately attack the Photon Power Lab and destroy Mazinger Z, but Dr. Hell asks him not to rush into things.
Yuukaisareta Majingaa Z (1974)
- S1E73
With the Mazinger Z temporarily unable to fly, Count Brocken sends a mechanical beast to destroy the robot in its weakened state.
While teaching Misato how to ride a motorcycle, Koji gets hurt and can't pilot Mazinger Z. Boss Borot gets sent out in his place.
Dr. Yumi heads a meeting to discuss how to reconstruct Aphrodite A, but Sayaka is nowhere to be seen. She's in a mourning over the loss of her robot.
The Diana A is complete, much to Sayaka's delight. She can't wait to pilot her new robot and show Koji just how strong she can be.
Dr. Hell loads the Blaster A7 with a cobalt bomb, hoping to blast the Photon Power Laboratory off the face of the earth once and for all.
With his pride on the line, Baron Ashura pleads with Archduke Gorgon to lend his Elephan Gamma-3 for an assault on the Photon Power Laboratory.
Archduke Gorgon offers to help Dr. Hell destroy Mazinger Z with his Greeks Psi-II. When the Photon Power Lab is attacked, Koji is nowhere to be seen.
Staff at the Photon Power Lab intercept a fake transmission from the Iron Cross, and Koji is lured into a trap on Bardos island.
After the Iron Cross kidnaps Koji, Dr. Hell dispatches a cyborg lookalike in a bid to take over the Photon Power Laboratory.
Boss' dream of flying comes true when it unknowingly rides on the Hawk Y2. When it attacks the lab, Boss' presence stymies Koji's response.
Vizcount Pigman ( or PiGuMaN) joins the forces of Doctor Hell and uses Fire against both the forces of Doctor Hell and the ones of Mazinger Z and his allies.
Diana A offers to teach Boss Boro how to swim in the sea, but when a mechanized tail destroys a nearby ship, the lesson turns into a game of survival.
Viscount Pygman infiltrates the lab, exposing the staff to a terrible disease. Meanwhile, Boss Borot and Diana A investigate a mysterious fireball.
Dr. Watson arrives in Japan to help design a weapon for Mazinger Z. Before he reaches the lab, Bornest S9 attacks his helicopter.
A rogue Viscount Pygman seizes the Glory R2. He kidnaps Boss, Sayaka and the others, threatening to kill them unless he gets the Photon Power Lab.
Risking death, Dr. Hell goes on the offensive, sending his Ghoul flaying fortress to lure Mazinger Z back to Hell Castle.
While Mazinger Z receives critical repairs inside the lab, Archduke Gorgon sends Gilania Beta-5 to attack the facility, equipped with a cobalt bomb.
Shiro's mother somehow returns from the dead. He wants to live with her, but she gives him an ultimatum: stop fighting and blow up the Jet Pilder.
In an all-out offensive, Koji and the others depart for Hell Castle. As Mazinger Z nears the island fortress, Haribyun V6 meets it with heavy fire.
After hearing that the Photon Power Lab has sustained heavy damage, the Emperor of Darkness orders his Great General to destroy it once and for all.