Hill and Renko handle a domestic call involving an old man threatening his neighbors with a shotgun; Hudson looks for the informer in his gang; and Joyce asks Furillo for advice about the Downey case.
Mork becomes insecure when he thinks he doesn't have Mearth's respect. Mearth finds Mork's spacesuit and Mork wears it as a superhero costume. Mork and Mearth go to a bar, looking for some bad guys and they find more than they bargained for.
Kimberly hopes a summer job will make her more independent, but when it becomes an undreamt chance at international modeling, it may be more independence than her father will agree to.
After the Japanese invasion of Singapore in February 1942, a group of British, Dutch and Australian women are held in a Japanese internment camp on a Japanese-occupied island between Singapore and Australia.
Ralph and Bill must stop World War III by defusing a corrupt military leader's plans to launch a suprise missile attack against Russia.
With Herb in the hospital, Mr. Carlson pretends he is Herb and is impersonated by Les for an advertising client.
Quincy and Janet finally get some time off and go on a weeks cruise. They are looking forward to some rest and relaxation together. Before long their holiday is interrupted. Quincy is visited, late one night, by the captain. One of his crew has been murdered and he would like Quincy's advice. The murderer is caught but he has died before the morning and an autopsy reveals that he could have died from an infectious disease. A disease that could already be spreading throughout the ship!
Space pirates have been raiding the area around Spaceport R-45 and Astro is needed to investigate.
Milton Bach is a computer hacker who ripped off the bank and ran. His wife, Rhonda, and friend Jerry stole the money and went to Mexico. He wants her back.
Charles returns from Paris to spend New Year 1925 at Brideshead and finds the family keeping Sebastian penniless to prevent him from spending on alcohol.
An ad campaign for a costly fake fur using high society ladies as models, including Jennifer, turns deadly when one of the women is murdered. Jonathan wants the ads pulled when a second victim is killed.
Fonzie and Roger are dating the same girl but don't know it. Meanwhile, Joanie is upset that she and Chachi don't go out as much as they used to, and Howard and Marion argue about love letters he wrote to her.
The latest scuttlebutt affects everyone's behavior when a visitor is rumored to be recruiting for a new M*A*S*H unit. The gang fears that the 4077th will be split up.
Servalan hires an assassin to kill the crew by luring them to a trap set aboard the assassin's ship.
In an episode about hero worship, Charles and Nels share deep concerns over an aging circus performer's influence on the children of Walnut Grove. Particularly since some of them - Albert and Willie in particular - have tried some of the daredevil's more dangerous stunts, with mixed results.
Jon and Steve ditch their bikes for a wild ATC (all terrain cycle) adventure with a beautiful compulsively lying witness to a strong of hit-and-run robberies.
The day after the party, Helen and Phil get conflicting accounts when they check in with the presumed lovebirds. The effort to get their stories straight gives Laura and Mike an excuse for an excursion.
Constant bickering between George and Carmen prompts Louise to tell Carmen how Florence handled George (via flashbacks). However, just as Carmen gets a handle on how to handle George, Florence shows up with news that the hotel burned down and she would like her old job back.