Shinobu Shimura

Warriors were chosen to battle the Dark Science Empire Death Dark. They fight using Future Science and their weapons are inspired by gymnastics apparatus.

Five descendants of the people showered with Bio Particles by Bio Robots five centuries in the past have become Biomen. They transform with the Bio Brace and fight using their Super Electronic Brains on their masks. Their Bioswords are equipped with sword and gun modes.

Bioman must rescue two boys who possess an ancient treasure map that leads to Biobase, making them targeted by Gear.