Figaro and Rivet are having lots of fun taking silly pictures of each other. But when a particularly embarrassing photo accidently ends up in a letter sent to Prudence, the joke is over. This letter needs to be stopped!

Figaro and Rivet are flipping through TV channels when an ad comes on for a time machine. Think of the adventures they'll have! The time machine arrives and they decide their first trip should be to prehistoric times.