Tri-Stone Area

Overview

It’s the Stone Age and Phineas and Ferb are cavemen who decide to invent something new, fun and useful…the wheel! Meanwhile, Dr. Doofenshmirtz attempts to make his digs more upscale by using the precursor to the Inator device... a plain old stick.

Guest Stars

John O'Hurley

Ro-juh Doofengung (voice)