After a suicide attempt by Jerry's neighbor lands him in a coma, Jerry begins a relationship with his girlfriend. George visits a psychic who predicts trouble on his upcoming trip. Elaine agonizes over having to fast before surgery.
Jerry becomes increasingly jealous of Elaine's relationship with Keith Hernandez. The unemployed George Constanza schemes to collect unemployment checks, while the illustrated JFK "second spitter theory" is further investigated.
Jerry trails a hit-and-run driver but is attracted to her and begins dating her; he later learns her victim was a longtime quarry and dates the latter as well. Kramer begins having seizures whenever he hears Mary Hart's voice.
Jerry learns that his new artist friend, from whom George has been forced to buy a painting, plagiarized a letter to keep him from breaking up with her. Elaine refuses to remove her Baltimore Orioles cap during a New York Yankees game.
Coming from an outing to a flea market in New Jersey, Elaine and George damage Jerry's car when George drives over a large pothole. When they get to his apartment they conveniently find a parking space right in front of Jerry's building. As George tries to back in however, someone tries to take the spot by driving in nose first. With neither car able to park, it leads to an all day argument. Elaine meanwhile has to come up with a story about the damage to the car.
Jerry is fed up with Kramer coming into his apartment any time he feels like it and asks him to return his spare set of keys. Kramer begrudgingly complies but then lets it be known that he's leaving for California. As for the others, the one key swap leads to multiple exchanges on pretty well everyone's part. When Jerry forgets his keys, he gets George to let him into Elaine's apartment so he can get his spare set. What they find interests them.
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, and later Newman receives a speeding ticket.
Jerry tries to buy his watch back from Uncle Leo, who found it in the garbage, having been thrown there by Jerry. George tries to resurrect the fledgling NBC deal, while Elaine plans a break up from her psychotherapist with Kramer's help.
George has decided he's made a terrible mistake in breaking up with Susan. He moans and groans and is generally driving everybody crazy. Against everyone's advice he decides to tell her he made a mistake . No sooner are they back together than he decides he's the one who made the mistake. Elaine decides to put her picture on her Christmas cards and Kramer agrees to be the photographer. Only problem is that she exposes just a little too much of herself. Jerry meanwhile is dating the model he recently met on a flight and things seem to be going nicely....until she sees ...