Harvey Birdman, Attorney at Law Season 3 Episode 6
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 needs to find his way back, as the rest want to stay.
Episode Title: Beyond the Valley of the Dinosaurs
Air Date: 2005-08-28