Cavemen in a Cave

The cavemen are in a space ship and they go through a time portal. They end up in the cavemen times, but they don't know it. "Hello, hello?" the pilot says, trying to get ahold of the airport people. The co-pilot asks what's wrong and the pilot shrugs. They land back on earth on schedule. When they get there, they find a cave full of cavemen. Before they go into the cave, the thrid caveman says, "Where are we?" One of the real cavemen talks gibbereish to them. When the three travelers go into the cave, they find that all of these real cavemen are working for Geico. They see computers, TVs, etc. Then one of the real cavemen says, "So easy, I could do it."