Himitsu Sentai Gorenger 1975

A powerful terrorist organization known as the Black Cross Army threatens to destroy the Earth, with only the defense organization EAGLE (EArth Guard LEague) able to oppose them. In retaliation, Black Cross Army destroys multiple EAGLE headquarters across Japan, killing all but five people. Now, these five remaining EAGLE members are called to form a secret, powerful team known as Gorenger, the only force left that has a chance to stop the Black Cross Army and their evil leader, Black Cross Führer.