LEGO Ninjago: Dragons Rising - Season 1 Episode 4 -

While Lloyd is training his young students Arin and Sora in the Monastery, the Destiny's Bounty appears in the sky and scrapes past the ninja by a hair's breadth. But with a bold leap, the three of them, along with the dragon Riyu, make it onto the ship to look for clues. They dive straight into the Realm of the Madness