Himitsu Sentai Gorenger Big Red Eruption! Infiltrate the Underground Base Season 1 Episode 28 Airdate: November 1, 1975 Synopsis Tsuyoshi infiltrates an underground Black Cross base to rescue an abducted scientist who is forced to create a destructive new super weapon. ← Yellow Object Q! Goranger Base S.O.S. All episodes Red Pursuit! The Mysterious Seal Train →