When Bronson arrives in an Amish community his tales of the ""outside world"" captivate a young man and woman, Harold Mueller and Dorothy Hofer, who are betrothed. Soon, Harold becomes jealous of Dorothy's attraction towards Bronson and heads out to see the world he has been missing. In the city, Harold meets the model Jan and, in the meantime, Dorothy, back in the Amish community, ponders about love and the future.
Peter Corman is murdered during a game of poker, and his brother Lorenzo arrives in Hawaii for revenge. McGarrett must work out what happened and prevent Lorenzo from carrying out his intentions.
While on a motorcycle trip to Mexico, Pete and Linc are detoured by a biker gang into a border town and held hostage along with all of the town's residents. The gang refuses to leave until they find out who in the town killed two of their members.
Lucy Carter, a widow with two teen children, takes a job as a secretary for her stuffy brother-in-law.
J.P. Judson, a haggard old man, arrives at the farm. He tells Aunt Bea that he's a Dowser and can find water with a divining rod. She offers him a room in the barn until Sam comes home the next day. Sam comes home and tells Aunt Bea that he hired a company and their geologist will be there in the morning. She talks Sam into letting Judson stay to watch the geologist. Mr. Harris arrives and finds a spot were he'd like to start drilling. Judson checks the spot out and says they won't get any water there. Harris drills anyway, but comes up dry. Later, Judson claims to have found a spot and only wants $50 to show Sam where it's at. Sam says he's going to stick with Mr. Harris. The next day Sam tries using a diving rod and Aunt Bea sees him. But he's still going with Mr. Harris. Harris drills another hole and comes up dry again. Harris bets Judson that he can't find water and Judson tells Harris to keep drilling where they are. Harris drills another 20 feet and they hit water.
Two halves of a microfilm add up to one dangerous list for the agents it will incriminate. But Barney plans to use a trained dog to retrieve it.
Ben comes to the aid of Amy Wilder, an eccentric animal lover whose mental competency is questioned when a neighbor declares an interest in her land for mining. The neighbor asks the court for a hearing to have Amy declared senile so he can obtain her land, setting off Ben's race against time to track down Amy's relatives to defend her mental state.
A friendly Giant has a teleport device that can send the Spindrift crew back to Earth, but the SID use the whole thing as a trap.
With UNIT's investigation being blocked by the Replica of Scobie, the Doctor and Liz visit Madame Tussaud's to try and find out more as Channing prepares to activate the Autons.
"Kinch" agrees to fight a German boxing champ to divert attention from a heist that Hogan is planning.
Max is serving as a courier on board an airplane when he is forced to release his package from the plane, sending it to land on the roof of Hester Van Hooten's mansion. The only problem is Van Hooten hasn't allowed visitors to her house in 20 years and she and her brother aren't about to start now.
Joe, foreman of the Cannon Ranch, threatens to quit over John Cannon's mistrust of a new hired hand but later realizes that John's suspicions were well-founded. In need of new help for an upcoming cattle drive, Joe hires drifter Jelks, whose attitude and actions are questioned by the boss. Dissention erupts between John and his foreman over the new man, who inadvertently solves their differences by proving one of them wrong.
When Greg begins constant daydreaming and his grades start to drop the Brady's quickly think something is wrong. They soon deduce he has puppy love, for a certain girl named Linda. However, they are having an incredibly hard time finding the right Linda but soon the Bradys quickly learn just who this Linda is.
Young Sister Bertrille uses her ability to become airborne to help others, whether they want it or not. Although her aims are always benevolent, her means are often bemoaned by Mother Superior. The other Sisters must cope with their beloved Sister's aerodynamics and antics as she flies in and out of trouble.
Driving home from a visit to his cousin, Mark picks up a hitch hiker, who turns out to be a thief looking for a scapegoat. The pair become friends, however, which causes problems when her accomplice turns up, anxious to carry out the original plan.
Phyllis catches Samantha using her magic powers and doesn't really know what to think. So, after six years, Samantha finally tells Phyllis that she is a witch and gives her a demonstation of her powers. Phyllis tells Frank about Samantha, and she tries to show Frank, but her powers have been taken away! Because of all this, Phyllis commits herself to a nursing home, convinced that she is a lunatic.
The marriage battle between Shorty and Elverna (Elvia Allman) rages on.
A psychiatric worker, George Loomis, is trying to drive a fellow Vietnam veteran Ted Frazer crazy in order to cover up the fact that he massacred his own platoon during an action. Loomis kidnaps boys and drugs Frazer to make it look like Frazer is mad and to blame for the tragedy. McGarrett and the team must unravel this web of lies and clear Frazer.