"New Kid on the Block" is the eighth episode of Season 4.
Bart falls in love his new next-door neighbor, young teenager Laura Powers. But try as he might, Bart can't get Laura to take interest in him romantically and is heartbroken when he finds out that Laura is in love with Jimbo Jones.
The Simpsons' next door neighbors, The Winfields, choose to move away because of Homer's constant embarrassing behavior. To help them sell their house the couple request Homer not to discourage potential buyers, with Homer bluntly refusing to do anything from covering his trash to taking in his old Jack-O-Lanterns, as well as disgusting buyers by sitting in a kiddie pool in his front yard.
Bart and Lisa explore the abandoned house and go into the basement. Bart scares Lisa away, but a beautiful girl surprises him, and knocks himself unconscious. When he wakes up, the girl says that her name is Laura Powers, his new neighbor. Meanwhile, Homer watches an advertisement on television about "The Frying Dutchman," an all-you-can-eat seafood restaurant run by Captain Horatio McCallister and wants to go.
Bart develops a crush on Laura. In the meantime, Homer and Marge visit Ruth Powers at the house where she and Laura moved in--after Marge gives Ruth a "Welcome to the Neighborhood" basket, which includes a gift for "the man of the house," which appears to be Ruth, since it appears to be just her and her daughter. After noting that Marge seemed uncomfortable, Ruth (rather casually) explains that she and Laura's father got divorced a couple years previously, with her being the one to get custody of their daughter. Meanwhile, Laura taunts Dolph and Kearney, two of the bullies. Laura looks at Bart's palm and predicts that he is going to be rich. She spits in his hand and says, "And there's the swimming pool." Bart says he is never going to wash that hand again.
Homer can't find a babysitter, so Bart suggests that Laura should babysit them, to which Homer agrees. Bart then takes a bath and dresses up to impress Laura. When she arrives, they share dinner and Bart even accepts a dance with her.
Meanwhile, Homer goes to the restaurant with Marge, ignoring the fact that Marge is allergic to fish. Homer orders the all-you-can-eat and literally eats everything (according to one of the staff members, Homer proceeded to eat "all the shrimp and then took some plastic lobsters"), continuing to eat well past closing time and completely taking unfair advantage of the offer. Captain McAllister finally kicks a struggling Homer out after midnight, since even after hours of constant eating he still wasn't full. He goes to trial with his lawyer, Lionel Hutz, claiming false advertising (with help from an entire jury of obese people). In her testimony, Marge is reduced to tears as she recalls how she and Homer drove around for hours afterward looking for another all-you-can-eat fish seafood restaurant before he then went fishing. Homer and the captain make agreements, with Homer now allowed to truly have all he can eat, in exchange for being put on display in the restaurant as "nature's cruelest mistake". Marge, of course, is humiliated. Also, Grampa gets a birthday visit from Bart. After a meeting in the treehouse, Laura tells Bart she is dating Jimbo Jones.
While Laura and Jimbo kiss, Bart makes a prank call to Moe's Tavern, posing as Jimbo. Moe then comes over and threatens Jimbo with a rusty kitchen knife, causing him to burst into tears, resulting in Laura dumping him. His fate remains unknown afterward. Laura tells Bart that she would date him if he were old enough to grow a mustache. Eventually, Bart and Laura make another prank phone call to Moe's and then laugh.