Fightin' Five #36

The Fightin' Five battle the evil Dr. Nijus, who has discovered unlimited wealth in gold and jewels beneath the ocean and plans to use his sunken city and advanced technology to conquer the world. After Dr. Nijus reveals his plot to rule all continents and turn those who oppose him into aquatic workers in his underwater paradise, the team must stop him from achieving his goals. The story is presented in multiple parts, with Part I ending as the heroes prepare to confront Nijus's forces.