Dr. Sanada, a physicist, identified Beamler energy within a meteorite fragment tied to the Tunguska event. This potent force was dispatched by extraterrestrials to assess humanity's readiness for contact. His research birthed advanced technologies, notably the teleporting fortress Good Thunder and the super robot GoShogun.

When the Dokuga organization moved to capture him and weaponize his findings, Dr. Sanada triggered a suicide bomb during their forced recruitment attempt. This sacrifice thwarted Dokuga's immediate plans and redirected their focus onto his son, Kenta Sanada, as a potential source of the Beamler secrets.

After death, Dr. Sanada's mind lived on as the reprogrammed AI "Father" within Good Thunder's main computer, guiding the crew opposing Dokuga. A critical revelation later surfaced that Kenta was not human but an alien entity intrinsically linked to Beamler energy, embodying Earth's collective consciousness, including sentient machines. Dr. Sanada's protection of Kenta and the energy thereby served humanity's interstellar validation.

His actions empowered the resistance against Dokuga, paved the way for Kenta's destiny, prevented the immediate abuse of Beamler energy, and catalyzed the conflict leading to Dokuga's defeat.