The Marvelous Misadventures of Flapjack - Season 2 Episode 15 -

Tired of Bubbie always questioning his authority, Captain K'nuckles decides to locate the ship where his Captain's papers are stored, and show them to Bubbie so that she will finally know that Captain K'nuckles is for real! But on the ship, Flapjack and Captain K'nuckles find out something neither of them ever expected, and they also find out that they might not be alone on this sunken ship!