The Quest home compound in Florida is attacked by foreign (submarine-borne) agents, intent on stealing a new undersea crawling vehicle that Dr. Quest is developing for the United States Navy.
Posing as an ex-con, Drake is recruited by an ultra-right wing organisation that trains assassins to eliminate world leaders.
Kimball takes advantage of a deadly car accident as a way to try and convince Gerard that he is now dead.
Andy is horrified to find Goober has brought a car into the courthouse after being left in charge while Andy was away at a sheriff's conference. That's when he learns that a couple of law-enforcement friends from the conference are coming for a visit.
An out-of-control test flight traps a pilot and his wife in a slow-moving time warp, and they're not alone.
The body of a no-good man is found in his burning store on the same night as the sudden disappearance of the nice couple he cheated out of the money for their ranch.
The Doctor and Ian reach the crashed spaceship and meet up with Barbara and Vicki, where the Doctor uncovers the truth about Koquillion.
The Castaways are captured by a Japanese sailor who thinks that WWII never ended. When the other castaways are captured, it is up to Gilligan to save them.
Fred is in the market for a second car and buys one at a local police auction. But he's unaware that the vehicle contains a fortune in stolen gems and that the jewel thieves who hid them have returned to get them back.
An undercover operative is convinced that the Addams family are spies.
Major Peter Gray and his wife Ann arrive at the 918th. Savage knows Ann as Ann Goss and was going to marry her a year ago. At Wing HQ, a WAC in photo reconnaissance points out something suspicious on a map, and because she says it reminds her of a Michellene (Mechlin) Lace pattern Savage dubs the investigation photo reconnaissance mission ""Operation Spelling Bee"". As Major Jake Hays is still laid up with a fractured knee, Savage chooses Gray to lead and tells him it is a milk run. The mission is to bomb the rail yards at Saint Edouard, then fly over the camouflaged area for photo reconnaissance. Gray is jealous of Savage's former relationship with his wife and feels that Savage assigned him this mission on purpose. It turns out that the camouflaged area at Saint Edouard are really launching sites for new V-2 bombs and German fighters are around in droves. Only 12 of 20 of the planes return from the photo reconnaissance mission. On the next mission to Saint Edouard, Savage leads a 4 gro
While hunting for samples of petrified wood in the Canadian Rockies, Dr. Quest is threatened by a gang of lumberjacks (one of whom disguises himself as a werewolf) intent on protecting their gold-smuggling operation.
Samantha hires Zeno the Great to perform at a charity bazaar and becomes his assistant to help the magician gain self-confidence. When Roxie, Zeno's former assistant, returns to capitalise on his newly found fame, Samantha tries to stop the scene-stealing.
Mrs. Drysdale wakes up to find she is no longer in the hospital but in her one hell—the Clampett mansion. After hearing she’s missing, her husband wants to sue the hospital. But when Jed and Jethro visit to return the mattress Mrs. Drysdale was on when they brought her home, the mystery of what happened is solved.
In Santa Monica, California, Kimble is hired by Norma Sessions to help care for her invalid brother Leslie, who was crippled in a car accident. Kimble doesn't realize that Norma, with her boyfriend Lars, are ploting to murder Leslie to collect his insurance money. When Norma suspects Kimble is hiding from the police, she plots to frame him for Leslie's murder.
Fingerprints left at the scene of a robbery in Scotland appear to belong to an agent whose been dead twenty years.
Andy catches Opie trying to sell his broken bike to a friend and teaches him a lesson in honest dealing. But when Barney talks Andy into selling his house, the lesson comes to haunt him as Opie points out all the faults of the Taylor house to Barney's potential buyers.
On the planet Dido, the monstrous Koquillion terrorizes Bennett and Vicki, the only survivors of a crashed spaceship. When the TARDIS lands, the Doctor, Ian, and Barbara team up with Vicki to discover what Koquillion is hiding. (Originally broadcast in two parts.)
Talk about a painful irony: though surrounded by water, the Castaways suddenly discover that their supply of fresh drinking water is running out. When they pool all available drinking water together and decide to ration it, they discover that they will each receive only a few drops per day. Of course, most of the castaways sneak water from the community supply when Gilligan is standing watch, but return it when the Skipper catches them. Just when all seems lost, Gilligan saves the day!