Johnny signs a contract to host a music TV program unaware that the songs will be disco.
When the owner of a cab company is badly burned in an explosion, the Angels go undercover to catch the culprit.
J.R. sets out to exact revenge on the Asian government after it takes over Ewing Oil wells. Meanwhile, Bobby looks into solar energy.
A pair of jewel thieves comes through Hazzard County and while confronted by Boss and Rosco, they make a getaway in the General Lee. This makes Boss think Bo and Luke are a part of the gang. Also, when the loot is found in Rosco's patrol car by his dog Flash, Rosco is fired when Boss thinks he's in on it, too.
A body-builder gets signed up in a body-building contest, only to be at odds with some questionable people who are involved in the competition.
Trapped Sapphire and Steel must use their wits and the help of the tenant to escape their prison and trap the faceless man and keep him from causing more harm.
Kip uses the public library commercial he's directing as an excuse to hire Sonny as a dancer, hoping to kick-start her career.
Mindy has a broken record player that the repairman won't fix for a second time. Mork and Mindy want to get revenge on the repairman, so Mork puts him on trial before a jury of broken appliances.
Mary Ellen finds out that Curt is still alive. He is living in Florida but is quite the different person from the man she remembers. J.D. asks Erin to come back to work by begging Erin.
When Latka's grandmother dies, he is pleased that she has left him her famous cookie recipe, complete with a supply of the secret ingredients. He bakes up some for the cabbies to enjoy, but the cabbies don't enjoy them. Nonetheless, Latka begins his own cookie business. In the days to come, the cabbies find that they are indeed starting to inexplicably like the cookies, and are also unusually happy and energetic. When Jim samples one, he determines that the secret ingredient is cocaine—which accounts for why everyone's behavior. Upon learning this, Alex visits Latka (busy baking cookies to fill supermarket orders) to tell him the bad news. Latka is noticeably high from the cookies, and hallucinates that Famous Amos tells him to do whatever it takes to be successful. Although Latka can no longer sell the drugged cookies, he is excited at the taste of capitalism because it means he's now a true American.
The Saurians plot to destroy the Searcher and start a galactic war by infiltrating the starship and a space station in human disguise. Only Buck, who has contracted a strange virus, is able to see the true form of the Saurians, but no one believes him. When the Suarians realize that Buck is a threat to them, he becomes the target of their assassination attempts.
An accused mugger claims that he was answering a psychic vision; a language professor takes vandalistic umbrage to a grammatically incorrect billboard.
Although Eric Tobin was reported missing in action over eight years ago, his fiancee, Laura Fraser, endowed with ESP, doesn't believe it. Magnum befriends her and, in finding out the truth about Tobin, discovers that he was a highly trained and effective government agent working under the control of a man known only as Delta One.
On a school field trip to see the Rainbow Comet up close, Astro and classmates are kidnapped by Atlas.
Arnold's excitement at being one of a small group of students in an exchange program with an all-white school is turned to fear by a threatening phone call from a zealous busing opponent.
At the opera, Jonathan is mistaken for a hitman and is given an envelope containing $100,000 for the job. When the messenger is murdered, Jonathan poses as the hitman in an attempt to save the victims life.
After a day of everyone asking favors of him, Fonzie has a nightmare about a mad scientist draining his cool.