Beyond the Valley of the Dinosaurs

When the whirlpool in Potamus' office sucks them back into pre-history, Harvey, Potamus, Peanut and Phil must find their way back to the office. Or rather, Harvey must find his way back. Phil wants to stay to exploit the untouched natural resources. Potamus wants to stay to exploit his status as idol among the natives; and Peanut wants to stay to exploit the market for hirsute cheesecake shots.