While researching marine biology in the Caribbean, Dr. Quest encounters a phony witch doctor, who is protecting a secret submarine base (under construction by a criminal contractor) with his supposed voodoo powers.
The King of Stoneslyvania goes missing before his country can secure a bank loan, leaving advisors for the King to ask Fred to impersonate him to get the loan.
Larry sees Louise and Samantha entering an obstetrician's office and assumes Darrin is about to become a father. It is actually Louise who is pregnant, but she is afraid to tell Larry. After Larry tells Darrin, he has a daydream about Samantha having "witch" children. When the four of them have dinner that night, the truth comes out.
Agent John Drake becomes a gambler in the South of France to infiltrate the mysterious world of international secrets for sale.
After finding refuge in an orphanage, Kimble becomes entwined in the plight of a troubled teenage boy who passes him off as his uncle.
Aunt Bee is elated when she is cast in the lead role in the Mayberry Centennial Pageant. When it becomes apparent she is not the actress she thinks she is, Andy devises a way for her to get a first-hand look at some real talent.
The Doctor and Ian are taken to the Dalek saucer while Susan and Barbara join the rebels in planning an attack.
Mr. Howell discovers a gold mine on the island. He then hires Gilligan to work in the mine. When gold fever strikes the castaways and Mr. Howell is unwilling to share the gold, they begin to charge outlandish prices for the supplies and food that Mr. Howell needs. When the professor repairs the life raft from the Minnow, they all climb in hoping to reach civilization. However, the combined weight of the gold that everyone smuggles on-board the raft causes it to sink. Another rescue foiled!
An investigation reveals a desperate plan involving the construction of a spaceship and a group of special children.
Ellie Merchant, the wife of farmer Joe Merchant, is having a passionate affair with outlaw Pike Beechum. Beechum intends to remove Joe and any other obstacle between him and Ellie.
Visitors from another country regret labelling the Addams gang uncultured.
In the Caribbean Sea, a new cook aboard the Quest research vessel betrays his employer to a gang of Mexican pirates (seeking a sunken treasure chest, discovered by Jonny).
After loosing his best friend Joe Farrell, Savage goes on leave ordered by General Crowe. He goes to Inverness by train then to the Isle of Dunfergus aboard the Glencoe Lass. On the train he meets a Wren officer, Ann Macrae, who is going home on leave. After several unfortunate disagreements, Frank and Ann start to get along and finally fall in love. Savage learns that she has terminal cancer and not long to live. There is nothing he can do and she dies.
When Darrin begins searching for a beautiful model to play "Miss Jasmine", Endora sees it as an opportunity to break up her daughter's marriage and sends a gorgeous witch to seduce him. Samantha recognises model Janine Fleur as Sarah Baker the witch. Sarah is determined to fulfil what she set out to do, namely seduce Darrin despite Endora calling off the contract. Samantha, who still has faith in her husband, just wants her battle with Sarah to be on an even playing field.
An annoying neighbor makes Fred's life a misery with his interference, so he enlists Dino to protect him, but finds that Dino is in love with the neighbor's dog.
Mrs. Drysdale gets Jed to back the Beverly Hills Ballet Company, and Jed figures that ballet is the perfect way to keep Granny, who is tired of getting “butler sassed,” among other things, in Beverly Hills. Jed gets her interested in the dance just as Mrs. Drysdale gets the money she needs to save the ballet company.
The death of a butterfly collector's assistant in India opens an unlikely investigation.
While working as a handyman in the predominantly Hispanic fishing village of Puerto Viejo, Kimble becomes aware that the area is beset with a plague epidemic and he's forced to call the state health inspector to have the entire area quarantined. But he soon finds himself trapped when the local doctor suspects his true identity and the irate villagers set out to find him.