When the Bounty airship returns with no captain, Arin, Sora and Lloyd use clues to figure out what happened to Kai. Is it a trap... or something worse?

Ninja never quit! Nya, Kai and Zane give the battle against Imperium new hope while Lloyd uncovers a mystery hidden deep below the city.

In the Land of Lost Things, Nya runs into an old pal while Sora looks for an alternate power source to ward off a junkyard monster called "The Hoarder."

While the Ninja try to figure out a way to bypass Imperium's energy barrier, Empress Beatrix tests a deadly weapon powered by stolen Dragon Cores.