In the first episode, in which the time machine winds up in the year 1,000,000 B.C., a tribe of cave people select Ralph as their king for a day. But the gang wonders why the previous kings had such a short reign. The answer when revealed may lead to Ralph's doom unless Fonzie and the gang step in to help him.
The time machine is close to getting to the year 1957, but it overshoots by a century, causing it to wind up in the year 2057. Worse yet, Cupcake's magic caused it to go into space. The gang manages to get it to the moon where they learn of an alien plot to conquer Earth. Can the Fonz stop their invasion plans?
The time machine transports the gang to Ancient Iraq, where King Nebuchadnezzar II calls for some help to save his famous Hanging Gardens from an evil prince.
The time machine takes the gang to the age of pirates, where Edward Teach, a.k.a. Blackbeard, needs the gang's help to find a lost treasure.
The time machine teleports the gang to 1800s, where they help out famous outlaw Billy the Kid.
The gang's time machine takes them to the Ming Dynasty of China in 1371, where the Hongwu Emperor's actual throne is stolen, and Cupcake uses her magic to defeat an evil sorcerer to get it back.
Unknowingly aided by Count Dracula, the gang's time machine winds up back to their present time of 1957, but not in Milwaukee. They end up in Transylvania, where they meet the count at his castle and have to overcome various horrors in order to escape -- one of which has a scared boy Ralph turning into a savage werewolf.
While the gang is experiencing life in Massachusetts during the Salem witch trials in 1693, Cupcake is captured by a crazed witch hunter. Now the gang must save her.
The gang travels to Ancient Egypt, where they meet Cleopatra. Ralph falls in love with her, but Cupcake sets him straight because history says that Caesar and Cleopatra dated.
The gang's time machine transports them to a jungle in Peru, circa 1532, where they meet friendly Incas and save them from the wrath of Francisco Pizzaro.
In medieval Camelot, the gang comes to the aid of King Arthur and Merlin the Magician when the evil Black Knight imprisons Arthur and plots to take over his kingdom.
In 19th century France, Cupcake transports the gang inside Jules Verne's imagination.
In ancient Greece, the evil Medusa kidnaps Hercules, and the gang must save him.
The gang lands in 1625 France at the Fontainebleau Palace. The kingdom is in trouble and the queen is in danger so the gang teams up with the Three Musketeers to right the wrongs.
In 3817 Fonz and the Gang are rescued from the ocean floor by the beautiful mayor of Aquacity, Ria. An evil surface dweller wants to destroy Aquacity and its kelp farms to get at the gold below.
On route to Milwaukee 1957 the gang in their time machine get stuck in a time storm emanating from the Bermuda Triangle, where they meet Ula and her giant ape Mondo and some villains.
The gang travels to 1864 Greenland where they find Anna and Gretel the Goose and travel with them to Jules Verne's Center of the Earth to find Anna's father.
The evil step-mother of the Princess of Siam plots to steal the throne. Fonz and the Happy Days Gang show up to thwart her villainy.
Evil Viking Sorceress Grimhilde is causing problems for the gang so they have to find the second magical bracelet to save the day. And a local boys has a mutual crush on Cupcake.
The Fonz needing a haircut leads to Richie and Ralph joining Maximus' Roman army in his quest to kidnap Princess Claudia and conquer the world.
While foreclosing on Pauline's home, Grimsley Gladwater, (A Snidely Whiplash type) also impounds the time machine. The Fonz must save Pauline and show Grimsley what's what. Also, Richie and Ralph enlist in the Mounties.
After Cupcake pulls the wrong level shrinking the time machine and losing it in a trophy cup, Fonz and the gang must enter Jules Verne's Around the World In 80 Days contest. Phileas Fogg is not in the race.
The Fonz and the Happy Days Gang end up in Central Africa 1100 where they help a Tarzan-like woman named Shanti whose astronomer father has gone missing. They also need to find the Chest of Wonders.
The Fonz and the Happy Days Gang end up in England 1899, where they meet Sherlock Holmes. The gang tries to stop Moriarty from stealing the Crown Jewels and using the jewels in a fiendish plot.
