Dengeki Sentai Bioman Self Destruct! Mecha-Humans Season 1 Episode 4 Airdate: February 25, 1984 Synopsis Using Shirou's animal informants, Bioman discovers a Gear plot to replace humans with exploding Mecha-Humans to sabotage a super-energy plant. ← Our Friend, BioRobo All episodes Kill the Unseen Enemy →