Nineteen years after Ryoma Nagare, Go Ichimonji and Messiah Tyr left Earth in the Shin Getter 1 to Mars,[a] the world is recovering from a previous conflict that almost changed the planet forever.

Upon that time, the conflict between Earth and an unknown entity known as the Andromeda Stellaration is escalating as swarms of technorganic insect-like aliens almost brought the planet to its knees.

In the midst of the conflict, Takuma Nagare, a teenage boy and the only son of Ryoma is searching for answers about his own legacy guided by his friend Baku Yamagishi.

Much to the dismay and curiosity of Hayato, he sent the Getter Arc piloted by Sho Kamui to assist Takuma on defeating the metal beast and was brought in to the institute.

An anime television series adaptation produced by Bee Media and Studio A-Cat was announced by Bandai Namco Entertainment on November 2, 2020, and aired from July 4 to September 26, 2021, on AT-X, Tokyo MX, BS SkyPer!