The Pirates of Dark Water Episode 19 - Sister of the Sword
Sister of the Sword.
The crew is forced to go to port to buy supplies after Konk destroys what they had gathered. There, Ren bumps into Solia, Ioz's sister, who is a pickpocket with an eye to go hunt a treasure located on Arakna Island, the most dangerous island in Mer. When Ren and Ioz refuse, she steals the crew's gold and the compass and gets Konk to help her while Ren chases after her to retrieve the stolen compass.