Season four of Seinfeld, an American comedy television series created by Jerry Seinfeld and Larry David, began airing on August 12, 1992, and concluded on May 20, 1993, on NBC.
With Elaine in Europe, Jerry asks George to accompany him on a trip to LA and The Tonight Show; while there they will try to locate Kramer. While auditioning, Kramer must deal with the advances of an older female landlord (an actress who hasn't worked since 1934) and get someone in Hollywood to read his script treatment. A body is discovered; the victim, a young woman, was strangled. Kramer meets a woman at an audition and he gives her a copy of his script. Jerry loses the correct phrasing for some new jokes and George tries to get Lupe, the chambermaid, to make his bed just right. At The Tonight Show, George disturbs the guests and Jerry bombs. The woman Kramer gave the script to is strangled and his script is found in her possession. Kramer's face is shown on the news as the prime suspect for the "Smog Strangler," a serial-killer.
Jerry and George try to contact the police to tell them Kramer is innocent. Kramer still doesn't know he's wanted. Jerry and George get a ride in a police car and while en route the officers pick up a possible 519. The 519 suspect is put in the back of the car with George and Jerry and they ask him tipping advice. Then all units are called in on Kramer's building, Jerry and George leave the police car door open and the 519 suspect escapes. While Kramer is in for questioning, another victim is found. He is let go and Jerry and George want to know what he is going to do, he is going to stay in LA. Jerry and George are back in New York and Kramer turns up like nothings changed.
NBC executives ask Jerry to come up with an idea for a TV series. George decides he can be a sitcom writer and comes up with "nothing." Kramer trades a radar detector for a helmet, later Newman gets a speeding ticket. While waiting to meet the NBC executives, George and Jerry meet Joe Davola, a writer and "a total nut" who goes to the same shrink as Elaine. Jerry searching for conversation, mentions Kramer's party, whereto Joe wasn't invited. While discussing the disaster of the meeting with NBC, George focuses on starting a relationship with the female NBC executive. Kramer shows his approval by throwing up on her. The helmet saves Kramer from an attack by "Crazy" Joe Davola. While all this is going on Elaine is in Europe with her shrink.
Kramer suffers side effects from his head injury. NBC gives Jerry and George another meeting and on the way, Jerry throws out a watch his parents gave him. He then meets his Uncle Leo, who picks the watch out of the garbage. Kramer agrees to be an alibi for Newman's trial on a speeding ticket. George and Jerry meet with NBC executives and they give the go ahead for a pilot. Later they hide in the coffee shop, afraid of an attack from "Crazy" Joe. Elaine's shrink realizes that he didn't leave an extra prescription for Joe Davola, for the time while he's on vacation.
Jerry's parents come to town to see a back specialist, they hear about "Crazy" Joe not liking Jerry and ask about the watch they gave him. George "negotiates" the deal with the NBC and gets a box of cigars from Susan's father. While at the doctor's office Morty's wallet is "stolen." Elaine returns from her trip and tries to end her relationship with her shrink. The deal with NBC is lost.
Jerry has dinner with his parents and Uncle Leo. Women, who's paying and the watch are all discussed. Elaine uses Kramer as "her boyfriend" in trying to fool her shrink. George gets Russell's address and tries to get the pilot reinstated. Jerry tries to buy back the watch. Outside her shrink's office, Elaine meets "Crazy" Joe, whom she begins to date.
Jerry's girlfriend, Naomi has a laugh that sounds like "Elmer Fudd sitting on a juicer," and when she hears George's message to Jerry, she breaks up with him. So instead, Jerry asks Elaine to accompany him on a trip to a cabin in the mountain with George and Susan. Kramer isn't invited. Jerry agrees to a side trip to visit a sick fan, a "Bubble Boy." George gets into a fight with the "Bubble Boy" over the correct answer to a Trivial Pursuit question. Kramer and Naomi also make the trip to the cabin and get the fire started.
Jerry and George begin to work on the pilot for the series they pitched to NBC. Jerry says the wrong thing while "messing" around with one of Elaine's co-workers. George & Susan tell her father about the cabin fire, he becomes distraught and letters saved from the fire soon explain why. Kramer goes to the Cuban Embassy in search of cigars and makes a deal.
"Crazy" Joe leaves Jerry a message saying he will put the "kibosh" on him. Kramer has tickets for the opera, Pagliacci, and everyone is going including Elaine and her boyfriend "Crazy" Joe. Elaine drops in on Joe's apartment and is she surprised by what she discovers, so she maces him with cherry Binaca and ends their relationship. Susan can't attend, so George tries to scalp her ticket. Joe, a big fan of Pagliacci, comes to the opera in clown garb; Elaine and Jerry attend together not realizing their different estranged relationships with Joe.
After much procrastination, George and Jerry strain to think of an idea for their TV series a few hours before a meeting with NBC executives. Jerry finds out a girl he once met is still a virgin, and later Elaine educates her about men after sex. George wants to end his relationship with Susan so he can exploit his writing profession as a pick-up line. Elaine runs into a Chinese delivery boy. Kramer watches too much television.
George's mother throws her back out when she falls down after catching him doing "you know." When George says he'll never do it again, Jerry challenges him to a contest of self-denial, when he accepts, Elaine and Kramer want in on the action, or rather the lack of it.
When their flight home gets canceled, Jerry & Elaine gets on another flight, the latter gets cramped into coach and Jerry parties in 1st class with a model. George and Kramer go between JFK and La Guardia to pick them up. When they settle on an airport George meets a convict and Kramer sees a man who owes him $240 from years ago.
Elaine is humiliated when she accidentally shows a bit too much on her Christmas card photo, that she has sent out to everyone she knows. Jerry has a date with the model from the plane, she later dumps Jerry because of "The Pick." George tries to reunite with Susan, but realizes it's a mistake, and uses "The Pick". Kramer goes to Calvin Klein to complain about "The Ocean," a fragrance they stole from him, and is asked to pose for a risqué underwear advertisement.
Jerry tries to make two show dates and afterwards go to the movie theater to meet everyone. George gets in the wrong line for tickets. George, Elaine & Kramer decide to go to another theater to see the movie. Kramer waits outside for Jerry but also wants a hot dog. Jerry misses his first show, then goes to movie theater to tell everyone he won't make the movie, but no one is there. Through a comedy of errors, everyone (but Kramer) misses the movie, they were originally going to see.
George meets a Chinese female lawyer who thinks he is real funny; so he tells Jerry not to be funny around her, but she becomes attracted to this. Kramer returns early from baseball fantasy camp, where he accidentally punched Mickey Mantle. A mix-up with Jerry's mail causes Babu to be arrested for not renewing his visa. Jerry tries to get the lawyer to help Babu, but George's honesty when his relationship is threatened causes Babu to be deported and Elaine to still be sued by the delivery boy she hit.
Jerry and George struggle to keep their idea for a TV series alive, one of their problems is they don't know how to do the Elaine character. Jerry meets an old girlfriend he never could kiss, later Kramer gets the opportunity. The ex-girlfriend talks about Elaine's shoes, mainly because she wants them. George is caught staring at the cleavage of the daughter of the NBC executive who is approving their script. Elaine's cleavage provides a means to turn the tables on him.
No thanks to Elaine, Jerry must work hard to prove he is straight when a college reporter mistakenly reports that he and George are gay, "not that there is anything wrong with that." Things really get out of hand when the article is picked up by the New York Post.
Jerry, Elaine & George volunteer to help the elderly. Jerry gets assigned to a nasty old man. Elaine is repulsed by the goiter problems of hers and George depresses his charge. Kramer and Newman try the business of selling old records to a used record store. Jerry loses track of his man when they try to take him to the dentist to repair his dentures, after the man had bitten Kramer's arm.
Jerry dumps his girlfriend after Elaine says her figure is the result of implants. Kramer claims to have seen Salman Rushdie at the health club. By accident Elaine later discovers the breasts are real. George accompanies his current girlfriend to Detroit for her aunt's wake. While there he tries to get a copy of her death certificate so he can get a 50% discount on the airfare.
Jerry has a date with a woman whose name he has forgotten, but it "rhymes with a female body part." Could it be "Mulva"? Elaine visits an old boyfriend who's in the hospital for an operation; he was once fat, thin she's interested again. Kramer gets an opportunity to witness the operation and he drags Jerry along, while watching they have an accident with a "Junior Mint."
The strong body odor of a valet is left in Jerry's car. George can't believe it when he spots Susan holding hands with another woman. Elaine loses her current boyfriend and Jerry is forced to try to sell the car, because the odor has taken a life of its own and permeated everything. George is turned by Susan's new outlook on life. Susan's friend is swayed to heterosexuality by Kramer, though later turned back off by a whiff of a jacket that Kramer borrowed from Jerry. When the car can't be sold, Jerry winds up leaving it and the keys out on the street.
Going out to buy an engagement party present for "The Drake," George parks his father's car in a handicap parking spot, after taking Kramer's advice. An angry mob trashes the vehicle when a disabled woman gets injured, because of the illegal parking. While visiting the woman at the hospital, Kramer falls in love and feels compelled to replace the wheelchair. George becomes his father's butler after his father gets arrested for parking in the spot.
Jerry and George get the green light to produce Jerry, the pilot for the series based on their "nothing" lives. Russell Dalrimple, the president at NBC behind the pilot, is obsessed with Elaine. George is obsessed with a white spot on his lip and a box of raisins taken by actor playing Kramer. The real Kramer has an internal plumbing problem and on his way to fix it, he gets delayed and is caused to "miss his chance." Jerry has an audition with the new "Elaine," a method actress interested in being Elaine in every way. The real Elaine has a problem with the coffee shop, they appear to be only hiring buxom waitresses, so she tries to get hired and files a report.
Rehearsals for the pilot begin. Russell's obsession with Elaine begins to affect his work. George asks TV Kramer about the raisins. The real Kramer might be forced to work on his plumbing problem by using the "dreaded apparatus." Elaine gets an investigation started on the owner of the diner. George gets the results of the biopsy of his white spot. At the taping of the pilot, Elaine sneaks in disguised and "Crazy" Joe jumps out of the audience. Elaine finds Morty's wallet in Jerry's couch. Everyone from the past season comments on the pilot as it's broadcast, they all think it's great. When Russell disappears, the fate of the pilot is in the hands of the new president, a person convinced that Jerry can't act.