While sitting in the coffee shop, Jerry and George resolve to grow up and take life more seriously. Jerry decides to call the woman he recently broke up with - because she shushed him. For his part, George has been thinking a lot about his former girlfriend Susan. After imagining the ideal life they could have together, he goes to her apartment and proposes. She accepts and George almost immediately begins to have second thoughts, especially after Jerry breaks up with his girlfriend a second time. Elaine meanwhile is having trouble with a neighbor's barking dog and enlists the help of two professionals to get rid of the problem: Kramer and Newman.

George gets cold feet and tries everything he can to postpone the engagement; Elaine is jealous of George's engagement; Kramer spills hot coffee on himself.

Elaine's latest boyfriend likes to be known as "The Maestro"; Kramer reaches an unsatisfactory settlement with the coffee company, much to his lawyer's chagrin.

Jerry squirts grapefruit into George's eye at breakfast, and for the rest of the day George is misinterpreted because everyone thinks he is winking at them.

Wilhelm thinks George is cracking under the pressure of working in the big leagues. So he has George entertain a group of visiting baseball officials from the Houston Astros, who are in New York to discuss inter-league play. George picks up a bad habit from them, who call everyone either a "bastard" or a "son of a bitch". Kramer buys a hot tub from his friend Lomez and installs it in his apartment. At the same time, Elaine is having a marathon runner from Trinidad And Tobago named Jean Paul Jean Paul stay with her as a house guest. Jean Paul was in the Olympics and became famous for having over slept and missed the entire race. She tells Jerry about it, and Jerry meets Jean Paul. Jean Paul reveals that there were separate knobs for the volume and the radio volume. Elaine also gets a severe case of writer's block when Peterman asks Elaine to come up with an idea for the Himalayan Walking Shoes. The previous night, Kramer runs the heat pump too hot and it blows out, reducing his body temperature in the process. The next day after George meets the baseball officials, he curses at them on the phone. Wilhelm once again thinks George is cracking under the pressure and reports it to Steinbrenner. Back at Elaine's, Jean Paul comments on what a "cute little bastard" her neighbor's baby is. Jean Paul gets kicked out of the building and has to go stay with Jerry. Jerry checks Jean Paul into a hotel and makes sure that the alarm clock situation is satisfactory. But after Jerry offends the wake-up guy, they bail on the hotel and go back to Jerry's apartment. Jerry tells Kramer to set his mental alarm for 6:30. Elaine, meanwhile, becomes disillusioned with Jerry about the whole Jean Paul ordeal and takes a walk, when she finally overcomes her catalog writer's block and comes up with a great write-up for the Himalayan Walking Shoes. But then during the night, Kramer's heat pump blows out all the fuses in the building. Jerry realizes that they had overslept and he and Jean Paul rush out to get to the race in time. They succeed and Jean Paul is leading the race when they get to the finish line. But Kramer is so cold from having the heat pump blown out that he is drinking boiling hot cups of coffee. Jean Paul grabs Kramer's drink instead of one of the other drinks and burns himself. George meets with Steinbrenner, who educates him on the nerve-calming capabilities of the hot tub.

A soup stand owner obsesses about his customers' ordering procedure, but his soup is so good that people line up down the block for it anyway.

George refuses to give anyone his secret code (BOSCO). Kramer buys a police scanner. Jerry does a series of ads for Leapin' Larry's Appliance Store. Elaine has dinner with J. Peterman but after she and Jerry bail on the dinner, George is stuck to dine with Peterman. George spills his secret code to Peterman's dying mother and gets in trouble for it.

Jerry has a hard time telling the pool guy at his new health club that there isn't room for a 5th member of the group. George's worlds collide when Elaine starts hanging out with Susan. Kramer discovers that his phone number is one digit off from that of a popular movie-finding service and offers help to those that mistakenly call his number.

After learning that her prophylactic of choice is being discontinued, Elaine buys a case of Today sponges and scrutinizes her dates for their sponge-worthiness.

When Lloyd Braun comes back from the psychiatric hospital, Kramer takes him under his wing and convinces Jerry to buy gum from him and wear glasses that don't belong to him to prove that Lloyd isn't crazy. George tries to prove to his old neighbor Deena that he isn't crazy after a cashier short-changes him.

After George's parents take back the bread they gifted to Susan's parents, George makes Jerry find another loaf and tries to appease Susan's parents by taking them on Kramer's Manhattan horse tours, to disastrous consequences.

Elaine's floozy former ex-roommate Sue Ellen Mischkie returns. George locks his keys in his car and leaves it in the Yankees parking lot. Elaine, out of spite, buys Sue Ellen a bra for a birthday gift as she has never worn one. George, having successfully convinced Wilhelm and Steinbrenner that he's putting in extra hours, decides to skip town with Susan after learning that her father rebuilt the cabin. So George asks Kramer and Jerry to go to Yankee Stadium and take the fliers off of his car. The car is really dirty, and Jerry and Kramer decide to go take it to the car wash. But along the way, they see Sue Ellen wearing the bra as a top. Jerry and Kramer get distracted and crash George's car. They return the damaged car back to Yankee Stadium. Steinbrenner, having seen the damage, and with George nowhere in sight, thinks George is dead. Kramer injures his arm in the accident, and his golf game is ruined. Elaine decides that Sue Ellen is a menace to society, and Kramer hires smooth-talking attorney Jackie Chiles to represent them. Unfortunately, the trial is jeopardized when Kramer asks Stan The Caddy for advice.

George becomes upset when Susan's cousin names her baby with the name he planned to use for his first child; Jerry questions his girlfriend's style.

In this hour-long episode, Jerry performs the biggest show of his life in Atlantic City. He receives a rather generous pay check for the event, and decides to buy his father a Cadillac. Unfortunately, doing so puts Morty in the hot seat with the condo board of directors, where he serves as president. Morty is accused of stealing money from the board, and ultimately gets removed from his post as president and kicked out of the condo. Meanwhile, thanks to Elaine, George can score a date with "My Cousin Vinny" star Marisa Tomei but Elaine objects because of George's engagement with Susan. Kramer turns the tables on the cable company when they want to disconnect his service.

Peterman wants Elaine to go to Africa, but when Elaine tests positive for Opium in her physical, that means no dice. George tries to convince his parents to move to Florida so that he finally gets his "buffer zone", but they have problems with Jerry's parents. Kramer and Newman scheme to buy black market shower heads when the building switches to low-flow ones.

George freaks out when he discovers that Susan has a doll that looks exactly like his mother. Jerry decides to use that as a bit on the Charles Grodin show when his prop gets destroyed in his carry-on luggage, but fellow comedian Sally Weaver screws up his bit by bringing him the wrong doll.

Jerry has a hard time getting membership in the Friar's Club when the Flying Sandos Brothers take his jacket during a show. Meanwhile, Elaine suspects that a new co-worker (Rob Schneider) is faking a hearing disorder to get out of doing work.

Susan's friends are in town for the Broadway production of Joseph And The Amazing Technicolor Dreamcoat. Kramer gets to wear the coat and is mistaken for a pimp in public when he accuses a local parking lot of running a prostitution ring out of his car. Jerry buys a jacket and later returns it for spite. Elaine tries to buy a dress from the same guy Jerry gets the jacket from, but is stunned to learn that he's holding it until Elaine sleeps with him.

George gets Steinbrenner hooked on eggplant calzones from a local Italian restaurant. But George gets banned from the restaurant when he's accused of stealing from the tip jar. He then asks Kramer to pick up the calzones, but Kramer gets kicked out when he tries to pay with pennies. George's last resort in getting the calzones is Newman who wants a cut of every delivery. Meanwhile, Kramer will only wear clothing if it's straight from the dryer.

A garage mechanic steals Jerry's car. Elaine tries to win J. Peterman JFK's presidential golf clubs at an auction. George is asked to work on a mysterious assignment. Kramer and Newman run a recycling scam.

A comment from George ends up causing a married couple to get divorced and Jerry and Elaine to date the soon-to-be exes. Kramer tries wearing jeans.

It's finally time for George and Susan's wedding. George doesn't think he can go through with the wedding. But when Susan puts George in charge of the wedding invitations, George gets the cheapest ones in the lot, knowing that the glue for the envelopes is cheap. Unfortunately for Susan, the glue is also toxic and licking the envelopes has fatal consequences. Meanwhile, Jerry courts a woman just like him named Jeannie Steinman and holds up his end of George's "pact" (see episode "The Engagement").