Albert experiments with smoking in the basement of the School For the Blind and, when shooed out of the basement, hides the still-lit pipe in some cloths. It ignites and results in a late-night fire that kills Alice Garvey and Mary's baby son. As a result, several people struggle with the consequences: Albert becomes withdrawn when he learns his careless actions may have caused the fire, Mary in deep shock and Jonathan Garvey in an alcohol-induced state of denial. Albert, Mary and Jonathan - all deeply impacted by the fire at the school - continue to deal with their emotions. Charles helps Jonathan realize that his alcoholism has taken a toll on his son, Andy, while Mary snaps out of her shock when she hears the melody of the music box Albert had purchased for her as a gift. Albert panics when he finally understands his carelessness caused the fire that killed Mary's baby and best friend's mother. He runs away, leading Charles and a reformed Jonathan to frantically search for the lad.
Jon and Ponch enter a desert off-road race, unaware that a pair of thugs are using the race as a cover to retrieve a cache of stolen coins.
B.J.'s pet chimp, the Bear gets sick, so he takes him to a vet, to his amazement,B.J. is told a few days later that the chimp is dead. but later finds that the Chimp is alive and the vet is selling animals to a lab
Capt. Stubing is wary of the presence of his brother, a notorious scam artist who seems to have set his sights on a wealthy passenger. A woman uses a computer to track down the perfect father for her child, whom she follows on the cruise. Julie's widowed aunt falls for a man who reminds her of her late husband.
Sue Ellen receives pressure from Dusty to leave J.R., which ultimately leads Sue Ellen to ask for a divorce. Meanwhile, Bobby and Pam's marriage is also on shaky ground due to Jenna's return.
Scooter bugs everyone by leaving his skateboard lying around. Kermit trips on it and smashes a set. Later, Anne performs while the Muppets all dance on skateboards.
When she asks for a raise, Daisy loses her job at the Boar's Nest. Enos suggests to Daisy that she apply for a position as a Hazzard County deputy. Boss and acting Sheriff Grady Byrd try to rig the training program, but Daisy more than proves her worth--and is determined to demonstrate it when she takes a call to stop a pair of hardened bank robbers with nothing to lose.
David is befriended by a motorcyclist, who inadvertently gets him mixed up in a gang-related conflict.
Carol pays a late-night visit to Jodie and Wendy. Jessica sees a psychiatrist who is crazier than she is. Burt learns he was the victim of computer error. Billy admits he is growing bored in his relationship with Leslie. The Tates rally to support Dutch after Eunice leaves him for another man.
Twiki is kidnapped by the evil ruler of a mining colony who, faced with an uprising of the mine workers, plans to make duplicates of the mechanoid to work the mines. While in the mines attempting to rescue Twiki, Buck discovers something that will help Earth destroy a 10-ton ice asteroid that is on a collision course with Earth.
Kraus falls for the Butcher, but she loses her self-confidence asking him out.
Wojo fears that a despondent Luger is planning to do himself in; a man seeking to reclaim his television set robs the police vault; a rash of bizarre robberies leads to an eccentric gun collector.
Mindy secretly writes for a newspaper's lonely hearts column and unknowingly gives advice to Jeanie, who then falls for Mork.
Mamie Baldwin makes it through a difficult operation with Grandma's help.
Quincy and Sam are called to a prison to help investigate the murder of one of the inmates. Once there they soon find themselves held hostage by the prisoners when they begin a riot.
Tommy is upset when Jill's idea of a commitment is not the same as his and then misinterprets signals from Mary's friend, Kerry, and gets deeper into trouble. Tommy presents Jill with a class ring. Abby and the girls plan a surprise baby shower for Susan. Nicholas plays go-between for Marvin but ends up with the girl instead.
Willis and Arnold scheme to make extra ""dough"" by selling brownies, only to discover they can't stand the heat of big business and may soon have to get out of the kitchen.