Muteki Choujin Zanbot 3

The Gaizok arrive on earth, with the sole intent of the total destruction of the planet, but encounter fierce resistance from the “Jin Family”, a group of aliens that fled to Earth following the destruction of their home planet by the Gaizok. The Jin family use the power of the combining mecha “Zambot 3” and the “King Beal” spacecraft to combat the Gaizok and the mecha boosts they utilise in their plans for domination.

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There once existed a planet named Beal, until it was wiped out by the mysterious entity known as Gaizok. The few remaining survivors escaped to Earth and split into three families, named Jin, Kamie, and Kamikita respectively. While attempting to start a new life, the collectively known “Jin Family” prepared for the inevitable Gaizok invasion on Earth and its giant mechanical beasts known as “Mecha Boosts”. In order to defend their new home, they have built three vehicles which when combined form the mighty Zambot 3. The Jin Family must not only defend against Gaizok attacks, but also harsh criticisms from the very people they protect, who blame the Jin Family for the invasion in the first place.

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Kappei is your normal run of the mill delinquent lad, riding motorcycles and trying to gain leadership of a gang. When fighting with a rival, they are both attacked by a strange creature! Fleeing to his Grandfather’s nearby sea rig, Kappei is knocked into the water and is rescued by a giant spaceship piloted by his grandparents. Before he can figure out what is going on, he finds himself in the mighty Zam-bird, fighting against the monster that attacked him – a mecha-boost of the planet-destroying Gaizok! Kappei isn’t the only one in his family who ends up with a giant robot, though; his cousin Uchuta pilots the Zambull and Keiko pilots the Zambase. Together, the three of them can transform into the Invincible Superman Zambot 3!