S1, E4: After Bob saves the native Kyba, Pam and Chuck watch the eruption of the volcano. Back in London, a German spy overhears Mr. X say Pam's uncle hasn't returned from his safari. This message reaches Dr. Bork who then tells Lang to have his natives kill Courtney. Pam, Bob and Chuck find Courtney, but he is killed before he can share the secret of the Sword. His last word before he dies is Lothel.