Sandra is forced to masquerade as the Princess Yolanda by Count Tauru, but she doesn't fool Count De Wex.; A suspicious figure knocks out the station agent and forces Jake to send a message that will wreck the Express!; Pincus sneaks around the ship and tries to figure out why Spike has been kidnapped.; Grim meets a stranger on the island, but the stranger is soon captured by the natives.; Barry and Le Grand attempt to escape from Fang Gow's yacht.; Don and Betty do battle with Krenon, captain of the Midget Queen's guards.; Dolores and her father hide from Pancho Villa as Jack rides to the rescue.; Slim tries to shake off an ape who's trying to make a monkey of him.; Jim fights off a mountain lion and rescues a boy from the canyon river.; Bob and a man impersonating Jake are about to leave for Alaska, while the real Jake escapes from his captors.; An expedition is mounted to Australia to capture a Zopsaurus.; Wing tracks Laurel Deane who has been kidnapped by Ali Ben Saad.; Brad tries to save Lorraine from the living Ape God; Linda is kidnapped by bank robbers.; Bobby and Binks continue following the star through Tutankahmen's Egypt.; The crew mutiny and take the Captain prisoner, but Dewey jumps overboard.; Kiddlaw leaves Rex and Axel for dead. They follow an underground river looking for a way out.; Henri swipes a Musketeer's outfit and distracts the guards so he can rescue his friends.; The Vampire Master succombs to a blazing death, but Doc and the Amsters escape.