Eikó wa dare no tame ni (E30)

An alien drilling vehicle descends to Earth when the Ultra Guard is set to begin their training exercises with marksman Aoki who proves to be a glory hound. Attempting to straighten him out, Dan takes Aoki to investigate a series of earthquakes and Aoki intentionally tips off the alien, nearly getting himself and Dan killed. Ambushed by the Platic, the two transform and fight. (Prime Video)