It's the Christmas season, and against his better judgment, Magnum agrees to being hired by five young schoolgirls to find their teacher, who has seemingly gone missing after falling in love. While he's working on the case, Magnum manages to convince Higgins to let the young girls stay on the Masters estate, but he's unaware that he's being deceived in a scam over a valuable painting recently purchased by Robin Masters.
Skunk causes trouble again, this time capturing a robot capable of invisibility hoping to use it in his schemes.
Franz introduces Mieze to Meck. Reinhold blackmails Meck to set up a meeting for him with Mieze. Meck takes Mieze on a drive to Freienwalde and delivers her to Reinhold. Reinhold takes her for a walk in the woods, where she resists his advances. Mieze wants to know more about Franz, and Reinhold reveals it is because of him that Franz lost his arm. Mieze is horrified at this revelation. Reinhold strangles her and leaves her in the woods.
When a hospital gas main breaks, Ponch and Jon evacuate all the babies from the maternity ward to the only safe place they can think of -- CHP command HQ!
Astronomer Carl Sagan leads us on an engaging guided tour of the various elements and cosmological theories of the universe.
The Muppets present their version of 1001 Arabian Nights, with guest star Marty Feldman playing the role of Scheherazade, telling tales to an evil Caliph (played by the Swedish Chef).
The gang visit a Wax Museum where the owners wants to add them to his collection.
Scooby dreams that he and Shaggy are in Wonderland chasing Scrappy as the White Rabbit.
Scrappy finds out all about his roots on his birthday.
In ""Crescendo"" singing star Susan Lohman hopes for romance with the brilliant composer of her songs. Not knowing that the mysterious and elusive composer is cursed her hopes are shockingly dashed when they meet. And in ""Three Feathers"" Alan Colshaw is unjustly accused of cowardice, having abandoned his three flight mates in the crash and disappearing. Not knowing what happened to him, he is in desperate need to exonerate himself.
The evil wizard Kublai seeks the Golden Scepter of the Yantzee (the only item which can strip him of his magic) and terrorizes the villagers of San Francisco's Chinatown in the process. When Thundarr thwarts his initial attempts, the wizard recruits another barbarian named Zogar to engage him in battle while Kublai tries again to find the scepter.
Capt. Stubing decides to get Vicki a parrot for Christmas. Unfortunately, it hasn't been trained to talk, and Gopher and Isaac's efforts to train it prove disastrous. A stowaway convinces the crew that a playboy passenger is his father. A father and son, who haven't spoken for ten years since the younger man left their singing act to go solo, resist their wives' efforts to reunite them.
In the series' only Christmas-themed episode; Boss, who is in an Ebenezer Scrooge-like mood throughout this episode, hires a trio of criminals to hijack the Dukes' Christmas tree shipment, then pin the blame on the Dukes. The scheme involves two of the bad guys stealing the trees from Bo and Luke at gunpoint, then the third associate disguised as a clergyman giving the Duke boys a lift into town, and then telling them they forgot "their" $500 down payment on the trees. While Uncle Jesse and Daisy set out to clear their family's name, the criminals plot to double-cross Boss by taking more than their payment due on the trees, breaking into the safe while each one is dressed as Santa Claus. Meanwhile, Bo and Luke, with some help from Cooter, decide to take back the trees and have a little fun confusing Rosco and Cletus while delivering the trees dressed as Santa Clauses. In the end, the episode takes a turn toward forgiveness and fellowship as the Dukes and Cooter invite Rosco and Cletus to their Christmas Eve gathering. Boss comes in later, reformed after having read Charles Dickens' "A Christmas Carol."
When disgruntled factory manager Harry is left feeling undervalued by his colleagues, he decides to take revenge.
When Ewing 23 receives a bomb threat, the incident gives J.R. an opening to take back control of Ewing Oil. Meanwhile, Ray reels from the shocking news that he is Jock's son and worries that Donna is slipping away from him.
Magnum is hired by a beautiful Chinese antiques dealer that he's making a play for to protect a precious ancient vase—The Soul of Sung—until its buyer arrives in Hawaii to collect it. But unbeknownst to him, the priceless ornament is wanted by a Tong gang from the girl's home country, and a deadly martial arts assassin who can kill in the blink of an eye is hot on the trail.
Dorsey takes a protective stance to a young prostitute; Harris is getting stock tips from another one; and Dietrich is tempted by all of them as he experiments with celibacy.
Henry decides to toughen up his image when another date insists she just wants to be friends.