In these undersea adventures, Aquaman meets an invading force of alien amphibians, discovers an island that is in fact a spaceship, attends the Underwater Olympics, helps a sea captain overcome an ancient curse and much more. Collects stories from SHOWCASE #30-33, AQUAMAN #1-18, BRAVE AND THE BOLD #51, and adventures from ADVENTURE COMICS #260-280, #282 and #284, DETECTIVE COMICS #293-300, WORLD'S FINEST COMICS #125-133, #135, #137 and #139, SUPERMAN #138 and #148, ACTION COMICS #272, SUPERMAN'S PAL JIMMY OLSEN #55, SUPERMAN'S GIRL FRIEND, LOIS LANE #12, 29-31.
