Un jove aventurer anomenat Milo troba un antic diari que conté pistes de com arribar a Atlantis, el mític regne enfonsat. Al costat d'altres intrèpids personatges Milo decideix embarcar-se en l'Ulisses, un impressionant submarí, en una arriscada expedició al fons del mar.

In the series premiere, Baloo, an air cargo pilot, meets Kit Cloudkicker, a 12-year-old orphan, and takes him on as his navigator. He also loses his business to Rebecca Cunningham, a business major who becomes his boss. Meanwhile, Don Karnage, a notorious air pirate, uses a special gem stolen from Shere Khan's company, Khan Industries, to power a lightning gun and threaten Cape Suzette.

In a 1930s vision of the future and gumshoe chases down a robotic murder suspect.