Summer 1975

Earth's worsening pollution has made finding a new home for humanity a necessity, but an alien force known as the Waldaster stands in the way of escape. When the invasion takes his father from him, young Joji Minami is given the means to fight back through the transformation system that turns him into the armored warrior Tekkaman.Launched into battle by the robot Pegas and armed with a space lance, Joji confronts the alien forces threatening humanity's future. His anger drives him forward, but the war becomes more complicated when a mysterious man from another world repeatedly appears at crucial moments, suggesting that the enemy and the wider universe hold secrets Joji has yet to understand.

A mysterious alien force attacks the Getter team's base while Great Mazinger is unable to come to its aid. The assault destroys the original Getter Robo and costs Musashi his life, leaving Ryoma and Hayato grieving just as Earth faces an even greater attack.A new machine, Getter Robo G, enters the battle with Benkei taking the vacant third seat. It soon joins Great Mazinger against Pikadron, an alien monster that grows stronger by absorbing their energy attacks. To win, the two super robots must abandon the tactics that feed their enemy and find a way to strip away its defense before another sacrifice is required.

Duke Fleed is a survivor of Planet Fleed, driven from his home after the forces of Vega ravaged it. Living as a fugitive on Earth, he cannot escape the war that destroyed his world, especially when the Vega forces pursue him across space.The conflict is made more painful by Duke Fleed's past connection to the daughter of Vega's ruler, whose feelings for him stand against the ambitions of her own people. When the enemy reaches Earth, Duke Fleed must rise once more in his flying machine and fight to keep another world from suffering the fate of his homeland.