Archie suffers his ultimate indignity when he's arrested along with a group of radicals at a protest rally.
Keith gave an interview for a magazine and revealed that Laurie has a crush on a classmate, Harry Murphy. Laurie is upset and says it is the wrong name anyway. A motorcyclist, Harry Murphy, comes to visit Laurie to see who she is as a joke.
Bobby and Cindy find their way back to camp bringing relief to a worried Mike and Carol. However, Bobby and Cindy's wanting to help the Indian boy, Jimmy, in his quest of running away to become an astronaut gets them into more trouble.
The Goodies help a suicidal zookeeper to locate a monster for London Zoo's Snowdon Monster House.
Felix is complaining about his nose and decides to get an operation. Oscar is ready to go out with Nancy when he lands on his ankle. Felix and Oscar both end up in the same room at the hospital. Gloria tries to take care of them when they get home.
Danny and Brett try to help a girl whose ""long lost brother"" has suddenly appeared, cutting her off from her inheritance.
Hannibal Heyes and Kid Curry, two of the most wanted outlaws in the history of the West, are popular "with everyone except the railroads and the banks".
A college professor suspects that his visiting aunt is an ancient witch--with designs on inhabiting his wife's body. Dr. Jekyll tries out a new potion. A callous disc jockey is offered up as a hellish sacrifice at a deserted radio station.
Sam and Darrin visit Inverness, Scotland, the place famous for the Loch Ness and its legendary monster. It seems that the monster is actually a warlock named Bruce who was transformed by Serena. To save Bruce's life, Sam calls on Serena to get him out of the spell. Once transformed, Bruce decides to get even with Serena by giving her a mermaid's tail! The reporters go crazy about the Loch Ness Monster, and Bruce wants to be a monster again. So he changes Serena back and Serena returns the favor by sending him back to the way he used to be, but with a little understanding about how important he really is.
Vic Tanaka is murdering women and painting their faces to resemble a prostitute he once knew, who is now happily married. McGarrett and his team must find the killer before he does any more damage.
A phoney cab driver is taking men to so-called parties, where they are drugged and robbed; but when one of the victims winds up dead, the Chief takes on the case. When he and his team try to follow the cab driver, however, they find that the gang are rather more dangerous than they had first appeared.
A former addict helps the trio catch a cop killer - her own stepfather.
Lucy Carter, a widow with two teen children, takes a job as a secretary for her stuffy brother-in-law.
An alcoholic woman lashes out at Hoss after his testimony sends her husband to prison. She gets back at him by forcing the big guy to take custody of her young son, Petey. Hoss must decide whether to ask the court to adopt him, or help the mother deal with her alcoholism.
Kroll and Stevens run the Northeast Syndicate and the IMF must bring them down. In '37 the two of them killed a rival mobster, hid the body, and killed the witnesses, so the IMF needs to get Kroll to lead them to the remains. They grab Kroll, drug him up, and cosmetically alter him to look like he was in '37. Then they dump him on a Hollywood set and convince him through incredibly elaborate means he is in 1937 on the day of the murder and the rest of his life is a dream. Overwhelmed by the sheer amount of detail, Kroll and ""Stevens"" reenact the murder at a cafe, which gives them the location so that Barney and Willy can find the real body in the real cafe's basement. The IMF fade away, leaving a reaging Kroll to confront his partner as he flees the 1937 New York set and wanders into an adjacent Old West street.
Mary is intrigued by the voice of Lou Grant's friend, Mike Cooper, and asks to be set up with him. Lou breaks his policy of not matchmaking friends and colleagues.
Mike has second thoughts after he agrees to let Gloria pose as a nude model for one of his artist friends.