Hector and Mac have their first day in the past and the caveman think they are evil spirits. They make good with a caveman's son and save his life. He wants to be an adult and the custom is to spend a day in the jungle alone. Hector and Mac suggest that instead of having this ritual they throw him a birthday party instead.
| Name | Type | Role | |
|---|---|---|---|
| Sherwood Schwartz | Writer | ||
| David P. Harmon | Writer | ||
| Elroy Schwartz | Writer | ||
| Richard Donner | Director |