The Flintstones and the Jetsons #21

Plot

Cover pencils by Glen Hanson, inks by Mike DeCarlo. It's About Time, script by Allan Neuwirth, pencils by Fernando Yache, inks by John Lowe and Jeff Albrecht; When Elroy tries to fix the treadmill, he accidentally sends himself, George and Astro back to the stone age where they switch places with Fred, Barney and Dino.