Tri-Stone Area/Doof Dynasty
- Episode aired Jan 13, 2012
- TV-G
- 23m
It's the stone age and Phinabunk and Gerb decide to invent the wheel. It's 16th century China and Phineas and Ferb set out to rescue kidnapped Princess Isabella from Doofus Khan.It's the stone age and Phinabunk and Gerb decide to invent the wheel. It's 16th century China and Phineas and Ferb set out to rescue kidnapped Princess Isabella from Doofus Khan.It's the stone age and Phinabunk and Gerb decide to invent the wheel. It's 16th century China and Phineas and Ferb set out to rescue kidnapped Princess Isabella from Doofus Khan.