In this crazy episode, Samantha gets a condition which makes her entirely 500 pounds heavier. Dr. Bombay comes and gives her an antidote that makes her lighter...a little too light as she floats to the air! This will be hard to hide when the Prescotts, McMann and Tate's newest clients, has Samantha volunteer for a charity bazaar and fashion show. Sam tries everything to help weigh her down, but to no avail. In a memorable scene, Samantha holds a giant urn on her shoulder as she goes down the runway half floating, half walking in the fashion show. It is there that Darrin comes up with a spectacular slogan for Prescott shoes.
Emil Gadsen has controlled the Syndicate's vice operation in the Northeast U.S. - now he plans to flee the country to avoid an indictment, leading his underling Thor Coffin in charge. Gadsen has a list of officials he pays off that he'll be taking with him - the IMF must get the list. Barney plays a psychic who visits believer Gadsen and warns of someone coming who is ""closer then a brother"" (although Gadsen has no brother), then drugs Gadsen to react in pain to someone showing him the Death tarot card. Then Gadsen and his son Tony meet ""Professor Gadaradz,"" who is Gadsen's lookalike (actually IMF guest-agent Scott). When Gadaradz has a heart attack, the IMF show Gadsen a Death card and he feels sympathetic pains. Barney convinces Gadsen that Coffin kidnapped and is now torturing Gadaradz - Gadsen breaks into Coffin's estate where Willy has snuck in and is fake-torturing Gadaradz. When Gadaradz ""dies,"" and Gadsen collapses in pain, he gives the list (hidden in his watch) to his son Ton
The Doctor forces the guerrillas to take him to the 22nd century where he is soon captured by the Controller.
Murray takes on a night job as a cab driver in order to save up and buy his wife Marie a new car for their 10th wedding anniversary. However, Marie becomes suspicious about Murray's absences and fears that Murray is having an affair with Mary Richards.
Archie's paranoia during a mysterious government investigation drives him to betray a long-standing friendship.
Lamont buys a porcelain figure for $15 from a silent movie star and after having it appraised, Lamont and Fred decide to take it to an auction to make even more money on it. Fred and Lamont attend the auction pretending to be buyers so that the price can be jacked up higher. However, things go awry to Lamont's dismay.
After seeing some experimental films at a theater, Keith says he can do better than any they saw. Keith pulls out the video camera and beings recording various random clips. Danny becomes his partner. The premier is not what he expects.
Greg, wanting to make a record, books a recording studio and plans on singing a song with his siblings. However, when Peter's voice begins to change, his hopes of recording his planned song are dashed.
The Goodies' bid to win the Nice Person of the Year Award is being sabotaged by the mysterious Dr. Petal and his evil robot doubles of them and other famous people.
Flashback Episode: We look back to the 1950s where young Felix suffers from an epic case of bad nerves and Oscar proposes to Gloria for him.
After Danny is accused of kidnapping his blind date, a rich man's spoiled daughter, Brett and Danny decide to help rescue her from the real kidnappers but have problems keeping her rescued.
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 Mob numbers racket suffers a series of robberies, but is understandably unwilling to report the thefts. The Chief, feeling that he knows who might be the guilty party, sets out not only to stop the robberies, but also to get to the thief before the Mob metes out their own form of justice.
A captured mermaid awakens emotions in a coldhearted sea captain, who desperately seeks a way to keep her alive. A businesslike widow goes shopping for the cheapest funeral she can buy for her husband. A repulsive suitor evens the score with a calculating beauty by presenting her with an unusual gift: a brooch that seems almost alive.
Pete is contacted by his old friend Rusty Bryson, a war correspondent whom he knew and idolized as a boy. But the Treasury department is looking for Bryson, who it suspects of smuggling drugs from Vietnam.
McGarrett is framed in an elaborate set up by Wo Fat, and has to contend with a foreign double amongst other problems.
Lucy Carter, a widow with two teen children, takes a job as a secretary for her stuffy brother-in-law.
Hoss enlists the aid of Judith Coleman, a clairvoyant woman who has the gift of "second sight" to find Jamie. He has been missing in the high country and cannot be found by anyone. Judith's gifted psychic abilities have had a long history of men casting her off as a witch, so at first she is reluctant to help the Cartwrights search for Jamie, then changes her mind since she owes them a great deal. Her fiancee, Jess Avery, who is a minister, doesn't look with favor as to her abilities and she may face the consequences of losing him unless she finds Jamie. Hoss refers to Jamie as his "little brother" for the first time.
A private detective, Edison, has pictures incriminating Syndicate boss Vochek in a murder and is using them to blackmail the mobster. The IMF need to get the pictures to get Vochek convicted, but Edison has been convicted and is in prison for six months. Since Edison is unaware that his accomplice Leona is dead, Casey takes her role while Jim is Edison's cellmate and helps him to escape, then fake their deaths. Casey-as-Leona tells Edison she sent the evidence to the D.A. after she heard Edison was dead, and Jim convinces Edison she is keeping the pictures to pull off her own blackmail scheme. When Edison confronts her, Jim fake-shoots her but she calls a confederate to get the film - desperate, Edison reveals the location himself as he goes for it, and ends up arrested.