Un joven aventurero llamado Milo encuentra un antiguo diario que contiene pistas de cómo llegar a Atlantis, el mítico reino hundido. Junto a otros intrépidos personajes Milo decide embarcarse en el Ulises, un impresionante submarino, en una arriesgada expedición al fondo 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.