Hidea and Wilma enter a beauty contest, but when they contract the Dinosaur Flu, Frank and Fred take their places. The two beauties are both declared winners, which makes the competitive Frank so angry, he literally blows his top.
Fred and Frank's initiation rites into the Mastodon Lodge challenge them into playing the wildest, outrageous practical jokes on each other. They nearly destroy Bedrock before being accepted into the brotherhood of the lodge.
