Lincoln has to complete a woodworking assignment, but has a history of failure on the topic.
At the Elementary School, Mrs. Johnson announces to her class that they're going to be doing a woodworking unit. Unfortunately for Lincoln, he has trouble with doing woodwork, as he gets blurry vision, jelly legs, and ringing ears just from thinking about it. Mrs. Johnson says that their first project is to build a stepping stool. At the Loud House, Lincoln tries to get to work on the stepping stool in the garage, but passes out just after looking at the blueprint. At the same time, Rita arrives and seeing Lincoln's predicament, decides to help him out. After shopping at the local hardware store, Shoulda Coulda Wooda, Rita attempts to help Lincoln, but due to Lincoln's incapability of understanding woodworking terms, Rita offers to build the stepping stool herself, so Lincoln can observe, and understand how it's done.
The next day, as the students present their stepping stools, Mrs. Johnson is impressed at the stepping stool Lincoln "made". After observing all the stepping stools, Mrs. Johnson announces their next woodworking project: a birdhouse. Lincoln, not wanting to work with wood again, attempts to persuade Rita into making his birdhouse, but Rita, seeing through Lincoln's guise, denies his request saying that he'll never learn unless he does the work. Seeing that plan fail, Lincoln goes to his next plan, which is stealing Walt's birdhouse. When Lincoln presents the birdhouse he "made", Mrs. Johnson is impressed once more. However, just when the students are leaving, Mrs. Johnson calls out for Lincoln, saying that she has an extra credit assignment for him to do. Her mother is coming to visit, and needs help putting together a dresser. Lincoln tries to excuse himself from doing the task, but is unable to come up with an excuse to convince Mrs. Johnson, as every excuse he gives has her give a solution.
At Mrs. Johnson's house, Lincoln is given all the equipment needed to build the dresser. Lincoln quickly calls up Clyde on his walkie-talkie and asks for his help, which Clyde agrees. Arriving back to Shoulda Coulda Wooda, Lincoln and Clyde attempt to haul a dresser they bought to Mrs. Johnson's house, and after arriving to their intended destination, they attempt to get the dresser onto the second floor. However, Walt, who is still angry at Lincoln for taking his birdhouse, cuts the boys' rope, making the dresser plummet down and get destroyed. Altered by the loud noise, Mrs. Johnson runs outside and observes the damage. Realizing that he can't lie his way out of this one, Lincoln comes clean, and admits that all the projects he supposedly "made" weren't done by him. Mrs. Johnson, upset that Lincoln lied to her, tells him that he should just head back home (but not before getting Walt's birdhouse back from her just so Walt can stop attacking him).
As Lincoln and Clyde throw away the pieces of the now destroyed dresser, Lincoln, realizing that he made no effort in doing woodwork instead of just trying himself, realizes that he might have an idea to make up for his mistakes. At the school, Lincoln presents a crudely made stepping stool from the pieces of wood he threw away, showing that he took the time and effort to do the project himself. Mrs. Johnson, who fortunately hasn't graded the projects yet, is impressed at Lincoln's effort, and decides to give him a pass, understanding that Lincoln went through so much to make it. After sitting back down, Mrs. Johnson announces that they're now moving from woodwork to clowning arts, and the first lesson is inflating balloons, much to Clyde's sheer horror, as he loses consciousness whenever he tries to blow up balloons.