When the Simpsons awaken one morning, they discover a line for the bathroom. It takes them a while to realize that everyone in the family is in line… leading them to wonder who’s in the bathroom. It turns out to be Maggie. Homer uses a coat hanger in an attempt to jimmy open the door, but instead he causes all sorts of sharp objects to fall within the baby’s reach. Eventually Lisa succeeds in opening the door. Moments later Dr. Hibbert shows up at the front door with a box of puppies. It turns out that Santa’s Little Helper mated with Hibbert’s dog even though Homer was supposed to have had Santa’s Little Helper neutered years earlier. Marge instructs Homer, Bart, and Lisa to find homes for the pups. They bring the last puppy to Krusty, who instantly bonds with it. The dog pulls Krusty to his old Jewish neighborhood, where he realizes that he has never been given a star on the Jewish Walk of Fame. Krusty complains to the curator of the Walk of Fame, who asks him several questions; including the date of his bar mitzvah. Krusty admits that he never had one. The curator tells him that in the eyes of God he is not truly a Jewish man. A depressed Krusty exits the building, where he’s spotted by Bart and Lisa. Krusty buries his head in his hands.

Bart and Lisa remind Krusty that his father is a rabbi, and wonder how it’s even possible for Krusty not to have had a bar mitzvah. Krusty visits his father for the answer. Rabbi Krustofsky tells him he was afraid that Krusty would make a mockery of the ceremony. Lisa tells Krusty that there’s nothing in the Talmud that forbids an adult from having a bar mitzvah, and she encourages Rabbi Krustofsky to help Krusty study for it. Later Krusty complains to his producer, Freddy, that the shooting schedule has him working on the Sabbath. He proposes having someone as a guest host, but doesn’t want to hire anyone who could upstage him. Homer volunteers for the job, and Krusty, sensing Homer’s not a threat to his career, hires him on the spot. Lisa volunteers to represent her father in business dealings. As the broadcast of Homer’s first talk show gets underway, Homer introduces his guests: Moe, Lenny, and Carl. It doesn’t take long for them to run out of things to say. Lisa encourages her father to say anything. He begins talking about donuts and other everyday subjects, and ends up appealing to a huge audience. When Lenny requests a raise, Homer replaces him with Barney, but Barney makes the mistake of upstaging Homer and he’s soon replaced with Disco Stu. Later Freddy and a group of network executives show up at Krusty’s house… and tell him that he’s been canceled. Krusty blames his firing on his religion.

As Homer and his family eat dinner at the Gilded Truffle, Homer is approached by several other celebrities and is even asked for his autograph. Lisa warns that his fifteen minutes of fame are just about over, words that have even more meaning when a man in a suit asks Homer to appear on The Hollywood Squares. Lisa asks Homer to use his remaining time in the limelight to say things that are meaningful. Homer takes Lisa’s advice, and his ratings begin to tank. Meanwhile Krusty meets with a group of network executives who tell him people are no longer interested in stars anymore: the public wants reality shows. Meanwhile Krusty brings his bar mitzvah to Isotope stadium. The act includes a guest appearance by Mr. T., who reads from the Torah. Meanwhile Bart blames Homer’s ratings decline on Lisa. Homer loses his temper and strangles Bart in front of his viewers. He’s promptly cancelled. Marge tells Homer she’s proud of him, because he lost the show in the classiest way possible. When Krusty finishes his bar mitzvah show, Freddy informs him that the network wants more. Later Krusty finishes his bar mitzvah at a synagogue, surrounded by his father and the Simpsons.