Tri-Stone Area Phineas and Ferb : Season 3 Episode 28
TV-G Disney XD 15m int(0)
Aired: June 22nd, 2012 @ 6:00 PM EST on Disney XD
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.