Buffy and Scooby Gang encounter even more trouble than they expect when the eggs they are given in health class turn out to be prehistoric parasites that take over their lives.
Buffy and her mother, Joyce, are at a mall discussing Buffy's desire to buy a revealing dress. Joyce and Buffy split up to each do an important errand before the mall closes. On her way to the store, Buffy sees a guy wearing a cowboy hat romancing a girl, but also notices he has no reflection in a nearby mirror. She follows him upstairs, scares the girl off, and fights with him until he runs away. She returns to her mom, but forgot about her errand, frustrating her mother, who then gives Buffy a lecture on responsibility. Joyce thinks Buffy only thinks about boys and clothes. A chagrined Buffy tells her mom that she also thinks about saving the world from vampires, which causes her mother to sigh with exasperation.
The next day, Cordelia and Xander are making out in a closet, fighting all the while. Xander says it will work better if she doesn't talk, and she says it will go better if they keep the light off. Each gets offended that the other doesn't want to see or hear them. Cordy mentions (again) that she doesn't want anyone to know about their relationship, and their tempers cause them to start to leave. They reach for the doorknob, but stop and go back to making out with each other. They fall to the floor and Cordelia reaches up to turn the light off. Later that day in health class, the teacher asks the students to list negative consequences of having sex, and Xander and Cordy list each other's potential faults as consequences, without naming names. Finally, Willow gives the intended answer—pregnancy—and Mr. Whitmore says to learn about parenthood, the students will pair off and each team will take care of an egg as if it is their baby.
Xander and Willow enter the library with their eggs. Buffy, who had skipped health class, is handed an egg ("As a punishment, it's a little abstract...") that she will have to take care of as a single mother. Giles looks up the cowboys—Lyle and Tector Gorch—and suggests Buffy should hunt them with Angel's help. Willow scoffs that there will be little actual hunting going on in such a scenario, but Buffy says they'd never slack off their duty to get lost in romance. However, that night Buffy and Angel make out in the cemetery instead of hunting. The Gorch brothers watch from the cemetery wall, commenting that Buffy wasn't doing much slaying with Angel. That night, while Buffy is sleeping, her egg breaks open and tentacles emerge and attaches themselves to Buffy's face.
The next morning when she wakes up, the egg is back to normal, and Buffy is grumpy at breakfast. Back at the library, Giles finds Buffy, Willow, and Xander, who have been excused from Health class because their teacher did not show. Willow and Buffy are tired and sit down on the stairs. Xander begins to toss his egg nonchalantly in the air, as worried looks cross Buffy and Willow's faces. He hits the egg and it goes crashing to the ground, but doesn't break. He then reveals that he hard boiled it. Giles suggests that Buffy should go back to hunting with Angel since last night was a bust. That night, Buffy and Angel are yet again kissing instead of hunting in the cemetery. They stop to talk and the subject of the future, and children, comes up. Angel reveals that he can't have children. Buffy is shocked but that doesn't change how she feels for him—she says when she looks to the future, she only sees him.
Back at school, the night watchman hears some noise and goes to find out what the source was. He finds a big hole in one of the air pipes in a closet. When he goes to investigate, he is pushed in through the hole by someone whose face is not seen.
Late that night, Buffy sneaks back in through her window and sees her egg is moving. She gets closer and the creature inside leaps at her face, then drops and scuttles under the bed. She uses an iron as a mirror to look around and sees nothing. It crawls on the floor some more. She grabs some scissors and stands waiting for it to show itself. It climbs the wall behind her and she kills it with the scissors, stabbing it again and again and again. Buffy calls Willow to warn her, but Willow's egg has already hatched. Buffy's mom then comes in, and sees she is dressed. Buffy is grounded and sentenced to no after-school activities, and to only go to the library until her mother picks her up.
The next day at school, Willow tries to convince Buffy that her egg must have been a trap set by the cowboys. As they walk, the camera shows the little creature from the egg is hooked to Willow's spine. Xander, hungry, decides to eat his egg. He cracks it open, and when he is about to eat it, screams when he sees the creature inside. In the science lab the gang debates dissecting the creatures. Willow volunteers, and moments later, Cordelia's egg wakes up from inside her backpack. She suddenly picks up a rod and hits Buffy across the face with it. Willow grabs a microscope and hits Xander. They are thrown into a closet. Then Willow and the others are seen grabbing hoes and pickaxes.
Mrs. Summers comes to school to pick up Buffy, and finds herself having a conversation with Giles about Buffy and children in general. Then she is turned into a host by him when he picks up a creature and puts on her back. The two head down to the basement where they begin their work for the mother Bezoar. Buffy and Xander wake up and find two eggs by their side. Buffy smashes them and they head to the library in search of Giles. They find that Giles has been turned into one of these creatures. Just as they begin to find information, Jonathan cries out in pain in the hall. They rush out only to find that he has been turned into a host. They follow and find everyone digging at and pulling eggs from the mother Bezoar. Xander pretends to be a host, while Buffy fends off the Gorches. She hits them several times and then is thrown into the working pit.
Xander follows Cordelia and another guy. As they walk down a tunnel, he smashes the guy's head into the wall. Cordelia stops to swing at him and he ducks. She then hits him right on his bump. He screams in pain and then hits her across the face. Lyle follows Buffy into the basement area where the two attract attention to themselves, and Willow gives orders to have them all killed. Everyone attacks them, but Buffy and Lyle manage to fight them off. Tector stumbles through the hole now that he's collected himself, and is drawn to the mother creature, who grabs him and sucks him in. Lyle blames Buffy for what happened to his brother and throws her to the ground. Joyce takes a swing at her with a pickaxe, and Buffy quickly dodges before she is pulled towards the mother after; luckily, Buffy manages to grab the pickaxe Joyce dropped on the way. She beats up the mother creature and then all the workers fall to the ground.
Buffy comes up and out of the creature covered in black goo, and Lyle runs off after saying "It's over" (referring to his sentiment after their first fight). The next scene shows all the students leaving. Giles explains that it was a gas leak, which Xander tells him to stick with as a cover story while also urging Giles to wait until the next day, when he fills Giles in on what really happened. Buffy finds her mother, who is upset that Buffy had not studied in the library as she was instructed. As a result, Buffy is confined to her room as punishment; however, it immediately cuts to Buffy kissing Angel. While it looks like they're outside, the camera slowly pans out to reveal Buffy is leaning through her bedroom window, claiming that "she's not breaking any rules." Cut to credits.
This episode introduces the Gorch brothers, Lyle and Tector, as minor villains. Tector is eaten, but Lyle returns in the Season 3 episode "Homecoming".
The physical relationship between Buffy and Angel is intensifying, foreshadowing the events of "Surprise" and "Innocence".
This is also the episode in which it's stated for the first time that vampires are sterile and cannot have children. Ironically, this is said by Angel, who will be the one and only vampire to be a father.
Angel says to Buffy "you don't care what happens in a year, five years from now." In a year's time Angel will leave Buffy and in 5 years the Hellmouth and Sunnydale will be destroyed.
This episode contains the first direct reference that Willow is Jewish; although there is a hint with her last name, Rosenberg, though not automatically: meaning "Castle of roses" in German, it may be (mostly) or not a Jewish surname.
Buffy expresses horror at the prospect of becoming a single mother. With Joyce's death in season 5, she becomes just that to Dawn.
Cordy refers to a girl 'having sex in a car'. If she is referring to herself as it is implied then she is the first of the younger Scoobies we know to have lost their virginity.
"Bad Eggs" had an audience of 4.1 million households.
Goofs, Bloopers & Continuity Errors
Jonathan is credited as "Johnathan".
Pop Culture References
Xander suggests Willow should teach her egg the "Dreidel Song". A dreidel is a small top shaped like a cube with Hebrew letters on each of its four side faces, tapering to a point at the bottom and with a little handle at the top. It is a traditional gift given to Jewish children during the holiday of Hannukah, and has long had a song associated with it.
Buffy: "I killed my Giga Pet!" When the Japanese Tamagotchi, a "virtual pet" which was in fact a small electronic device one carried in one's pocket and "fed" and generally paid attention to lest it died, became an instant fad and sold out literally in hours here in the U.S. in 1996, Tiger Electronics came up with their own version called the Giga Pet, which was more easily available and just as popular.
Giles to Xander: "I suppose there is a sort of Machiavellian ingenuity to your transgression." The Italian philosopher Nicolo Machiavelli (1469-1527) was one of the most influential of Renaissance thinkers. His most famous work was the 1515 treatise The Prince, in which he says that to remain in power and be truly effective, a ruler must reject traditional morality and use his power ruthlessly — for instance gaining a reputation for stinginess instead of generosity, or to be severe rather than merciful when administering punishment. As a result, the term "Machiavellian" has come to describe the practice of achieving one's goals by whatever means necessary, whether those means are moral or not.
Buffy - "Don't you understand how important this is?"
Joyce - "It's an outfit. An outfit that you may never buy."
Buffy - "But I looked good in it."
Joyce - "You looked like a streetwalker."
Buffy - "But a thin streetwalker." (gets a look from her mom) "That's probably not gonna be the winning argument, is it?"
Joyce - "You're just too young to wear that."
Buffy - "Yeah, and I'm gonna be too young to wear it until I'm too old to wear it."
Joyce - "That's the idea."
Joyce - "Okay. I'll go to the printers and then get our food. (pulls out a slip of paper) You go to the tailor and pick up my outfit from Everyday Woman." (she hands Buffy the slip of paper)
Buffy - (looks at the paper) "Everyday Woman?"
Joyce - "Mm-hm. There's the receipt."
Buffy - "Why didn't you just go to Muu-Muus R Us?"
Joyce - "Do now, make fun of your mother later." (walks off)
Buffy - "Oh, bliss." (sits) "Mall food." (looks up at her mother)
Joyce - "Buffy?"
Buffy - (attentive) "Mom?"
Joyce - "Where's my dress?"
Buffy - (confused) "Your dr...? Oh." (winces) "Oh, God."
Joyce - "Let me guess. You were distracted by a boy."
Buffy - (cringes) "Technically."
Joyce - (leans back) "Buffy..."
Buffy - (exhales) "Look, I-I can go get it right now."
Joyce - "They're closed. I'll just have to fit it in tomorrow."
Buffy - "Sorry."
Joyce - "A little responsibility is all I ask. Honestly, don't you ever think about anything besides boys and clothes?"
Buffy - "Saving the world from vampires?"
Joyce - (crosses her arms and shakes her head) "I swear, sometimes I don't know what goes on in your head."
Joyce - (to Giles) "They're such a - oh, I don't want to say burden, but, uh... Actually, I kind of do want to say burden."
Willow - "Buffy, how come you weren't in class?"
Buffy - "Vampire issues. Did Mr. Whitmore notice I was tardy?"
Xander - "The word you're searching for is "absent"."
Giles - "Technically that would be cheating, yes?"
Xander - "No. It's like a short cut. You know, when you run a race?"
Buffy - "That would also be cheating."
Buffy - "Hey, where's Giles? I know he won't wanna miss this."
Willow - "He said to get started. He'll be by as soon as possible."
Xander - "So, okay! Get started, Buffy! Dissect it or something."
Buffy - "Me? Why do I have to dissect it?"
Xander - "Uh, because you're the Slayer?"
Buffy - "And I slayed. My work here is done."
Giles - "How did the um... hunt go last night, Buffy?"
Buffy - "No go."
Giles - "No, "no you didn't go"? Or, no, "you were not successful"?"
Buffy - "No Gorches."
Xander - "Apparently, Buffy has decided the problem with the English language is all those pesky words. You. Angel. Big. Smoochies?"
Buffy - "Shut. Up."
Xander - "Last time Cordy dragged me in here, it was a lot nicer."
Buffy - "What?"
Xander - "Huh? Nothing. Head trauma."
Xander - "What are we gonna do?"
Buffy - "We can't fight these things until we know something about 'em."
Xander - (thinks) "Alright, Willow said something. Uh, a name. What was it?"
Buffy - "A bozo! Not a bozo."
Xander - "A bezoar."
Buffy - "That's it! Okay, so now... we look it up?"
Xander - "In what?"
Buffy - "A book?" (They look over at the counter where there are several books lying open and go over to them) "Giles said he was gonna try to find something..." (She takes the book on top that's open to a picture and turns it around to look at it. The sketch is of a disk-shaped, tentacled monster) "And I'd say he found something." (Xander moves around her to have a look himself, steps on half an eggshell and looks down at it)
Xander - "I'd say something found him."
Buffy - " 'Pre-pre-historic parasite. The mother hibernates underground, laying eggs. The offspring then attach themselves to a host, taking control of their motor functions through neural clamping.' "
Xander - " 'Neural clamping.' That sounds skippable."
Buffy - "So, our people are taking orders from the mama bezoar. Which begs the question..."
Xander - "What does mama want?"
Giles - "Yes, yes, uh, i-i-it was a-a, a gas leak, everyone. Uh, well, just, uh, get some air, and a… good night's rest, you know, uh, you'll be fine. These gas things… will happen. (to Xander) W-w-what was it really?"
Xander - "Stick with the gas thing. I'll fill you in tomorrow."
Giles - "Right."
Joyce - (to Buffy) "Until further notice, you are confined to your room. You will not leave your room at any time, except to go to school or the bathroom. Am I making myself clear?"
Buffy - (quietly) "You're clear."
Willow - "Did I really hit you?"
Xander - "You knocked me out."
Cordelia - "Did I hit you?"
Xander - "Yes! Everybody hit me!"
Cordelia - "Good. I mean, good not as in 'I hate you'. I just didn't want to be left out."