After Johnny is knocked out by a woman he was flirting with, a band of sci-fi geeks find a dazed Johnny and become convinced he is a time traveler from 1963.
When Johnny takes a bite out of Pops’ hot chili, he uses Carl’s fountain of youth potion to cool down the flames. This makes Johnny revert to a baby until 4:00 PM, but Bunny likes the idea of Johnny being little again.
After being the butt of everyone’s April Fool’s jokes (including Suzy’s class), Johnny thinks of a way to get revenge on their teacher, but when he does, it is not April Fool’s anymore, and the teacher beats him up.
Flying high above the jungle on a plane, Johnny makes a stewardess angry by his constant flirting with her. As a result, the stewardess boots Johnny off the airplane mid-flight. When Johnny comes down, he soon meets Jungle Boy.
Johnny feels that his mother doesn’t love him after she is disappointed due to his carelessness blowing up the microwave, so he leaves home and joins a freak show.
Johnny eats too quickly and gets a severe case of the hiccups. He visits a beautiful doctor who tells him that if his hiccups persist, he can come back for her hands-on treatment. To keep his hiccups going, Johnny tries to avoid the remedies of everyone in town.
Johnny tries to enter a contest to win an “El Toro Guapo” pick-up truck, and he must outlast a host of competitors in holding on to a rather talkative bull.
The “Harold and the Fuzzy Bunny Book” has been taken off all library shelves by a greedy censorer named Mr. Blowhart, and Suzy must make him change his mind.
Little Suzy plays a Buttercup Scout who is determined to get Johnny to buy some of her delicious cookies. Johnny, not wanting to break his strict diet, travels all across town to escape Suzy, who foils his every attempt to get away.
In the distant past, a same-named ancestor of Johnny living in Bedrock is rescued by Fred Flintstone and soon finds himself doing Fred’s chores as a way of repaying Fred.
Johnny orders an ab machine, but instead of getting a six pack, his muscles form the shape of Mount Rushmore, making him a tourist attraction. Then, he gets a big fat belly.
Johnny is a film director, writer, and a star of a new movie that he created using a $7 million arts grant from the government of the United States of America.
Johnny and Bunny go to Scotland, and Johnny buys himself some haggis, causing problems when the Loch Ness Monster attempts to claim the dish for her own.