Lincoln is hard at work making a model volcano. He tries to ask his parents for assistance, but they're too preoccupied trying to help his sisters. Lincoln then tells the viewers that in a family as big as his, he can't get some assistance from his parents.
As Lincoln and Clyde head to school with their model volcanoes (with Lincoln's being messy and clumpy, while Clyde's is well detailed), Lincoln compliments on how well crafted Clyde's model volcano is. Clyde tells him that his dads assisted him in making it the entire weekend. He then suggests that Lincoln come by his house to help him, an offer he happily accepts.
After their day of school, Lincoln and Clyde head to the McBride house. The moment they enter, Clyde's dads, Howard and Harold, quickly pamper Lincoln, such as fixing a loose button on his polo, fixing the sole on his shoe, and evening out his sideburns. Later, they serve dinner, and Lincoln is amazed at the fact that they play classical music, and eat actual meat instead of foiled packages. After they're done eating, Lincoln, Clyde, Howard and Harold all relax on massaging chairs, with Lincoln telling the viewers that he's finally getting some attention.
Lincoln heads back home, but the moment he walks in Lynn bumps into him and suspiciously asks him what he's been up to. Lincoln tells her all about the excitements of hanging at Clyde's house and she wants to join him, wanting to improve her bat swings.
The next day, after Lincoln and Lynn leave the McBride residence, they arrive back home and encounter Luna, who notices subtle changes on Lynn's appearance. Like Lynn yesterday, she gets suspicious about their activity and they tell Luna about their time at Clyde's. After they tell her, Luna promises to keep it a secret.
Lincoln enters Clyde's house and mentions that he can tolerate a couple sisters, when suddenly the other sisters come in one by one. Lincoln chastises Luna, believing that she spilled the beans on everyone else, but she said that she never did -- at least not technically. Through flashback, it is shown that while Luna was singing in the shower about all the attention and respect she got at Clyde's house, the other sisters eavesdropped on her and heard every word. With that, they all agreed to spend time at Clyde's house. With these turn of events, Lincoln is unable to get any attention and assistance into finishing his model volcano. When Lincoln tries to tell the sisters to quiet down, he's interrupted by his sisters, who thank him for introducing them to Clyde's dads. At that moment, Lincoln realizes that all the sisters wanted was some attention but since he's unable to get some help, he heads back to his own house.
When Lincoln arrives back home, Rita and Lynn Sr. offer their assistance to Lincoln to help him with his project. At that exact moment, the other sisters arrive back home. They tell Mom and Dad that Clyde's dads snapped because of their antics, so the sisters are sent back home by the McBrides. Back at the McBride house, Howard and Harold are so exhausted that they're unable to behave like their normal selves for the night.
As the sisters complain and ask for their assistance, Mom and Dad tell them to stop by saying that they want to help Lincoln first. After a few minutes (provided by a "Five Minutes Later" screen), Lincoln says that the volcano is ready and is prepared to press the button to ignite it. The moment he presses the button, the entire first floor of the house (and presumably the whole family) is splattered with lava.
Flip has no lines in this episode.