The Lost World is shattered by gunfire as trophy hunters try to capture a Troglodyte child. Veronica swings through the jungle to save him, and becomes the hunters' new target. She escapes to the Treehouse to warn her friends just ahead of the hunters. One of the hunters declares that he has been commissioned to locate the Challenger expedition and help them return to England. Despite Veronica's warnings, and Marguerite's suspicions, the hunters are welcomed and set up camp nearby.