|The First Caveman|
|Season 2, Episode 27|
|Sir Issac Newton||Geronimo|
Mr. Peabody and Sherman visit a duo of cavemen who can't live in a cave because a saber tooth tiger is living in there. Now, Mr. Peabody must get the tiger out without hurting it.
- There are dinosaurs in the caveman land. Coincidentally, this was aired the week after the Flintstones premiered.