Fred and Barney sneak to an Indiana Jones exhibit during a visit to the museum and pretend to be Indiana and his trusty sidekick. Dreamchip wants to test her new dog-washer on Dino, and Fred agrees until Dreamchip calls Dino a "mutt". A two-headed alien child named Riff and Riff are stealing the mothers of Earth. Cavey and Cavey Jr. infiltrate the ship to find out their plot.