A salesman attending a convention wrongly believes that he is responsible for the death of an attractive female hitchhiker who had lured him to her houseboat.
Bob finds it extremely difficult to tell his mother that he loves her.
When the gang stop at Moody Manor to get directions, they find themselves mistaken for Captain Moody's neices and nephews by an assortment of characters who all resemble Don Knotts.
Danny wants to lose weight to impress a girl. Shirley puts him on a diet. After a week, he weighs more because of cheating. Ruben teases him about no will power so they decide to tackle their own vices - Danny's food and Ruben's smoking.
Felix takes a writing course and gives the words "no talent" new meaning.
Donna, Fred's fiancee, brings a patient, Osgood Wilcox over for dinner at the Sanford residence and it becomes apparent that Osgood is interested in more than just medical care from Donna. Meanwhile, Lamont encourages Fred to believe there is something going on between Osgood and Donna resulting in a confrontation.
A wealthy recluse hires the Protectors to break his brother out of prison.
The pumping station of the reservoir has been damaged by a bomb with Walker and Godfrey trapped inside. Hodges is determined to overrule Mainwaring's rescue attempt until it's discovered the structure of the building is very unsafe and they draw lots to decide who are going to be the ones to dig the stranded men out. After successfully reaching Walker and Godfrey, the roof caves in and everyone but Jones ends up trapped in the underground bunker that is now rapidly filling with water. But does Godfrey have a solution that is more useful than asking to be relieved?
John Boy prepares to go on his first hunt and distress over taking an animals life. During the hunt he saves John's life from an attacking bear. Meanwhile Mary Ellen debates over a new dress or a baseball mitt.
A fur coat is the only lead the trio has in a case involving kidnapping and murder that has them baffled.
Carol is dating Russell Asher, a dashing writer, who just happens to have once dated and later jilted Maude. This leads Maude to do her best to warn Carol of Russell's egotistical ways. However, Carol refuses to heed Maude's warnings and continues to date him, even spending the night with him which turns into a disaster.
While at the Nevada State Prison to inspect conditions, Ben is taken hostage in a riot. The riot is an attempt by frustrated inmates to expose horrific conditions at the prison. While Joe and Candy plan to resolve the situation, Ben begins a friendship with Griff King (who isn't exactly receptive), and helps communicate the inmates' demands to the warden and state prison board.
Danno shoots an apparently armed teenager but finds that he was mistaken, and public opinion and the teen's brother turn against him. McGarrett must act to defuse the potentially explosive situation.
The rivalry between Eddie and Bill reaches boiling point when, in the grip of sale fever, they try to outwit each other in a desperate attempt to be first in the queue for the bedroom suite that their respective wives have set their hearts on. Strategy and vigilance is everything, so who is caught napping ?
Lucy Carter, a widow with two teen children, takes a job as a secretary for her stuffy brother-in-law.
A photographer hires a mysterious model whose eyes burn with a seductive, yet frightening, glow.
Trapper and Hawkeye seek to keep a new nurse from being transferred by Hot Lips, and they vie for her affection. Henry Blake, challenged by another commander to a boxing tournament, makes Trapper fight a big, intimidating soldier in exchange for keeping the nurse at the 4077th. Hawkeye and Ugly John employ the use of a glove soaked with ether to insure Trapper's victory, which impresses the nurse. Margaret and Frank's attempts to unfix the match collapses, as they are flattened by the unconscious boxer!