Jack and the Gangsters

To try to get close to Aku, Jack joins some gangsters on a heist to steal the “Jewel of Neptune” from its elemental guardians. After Jack steals the jewel and the gangsters bring it to Aku’s lair, he almost kills Aku before the gangsters knock him unconscious and take him away. They lie about giving up crime to convince Jack to let them keep the jewel.