Arthur's Big Hit

Summary
Is it ever okay to hit someone? Sometimes you just get so mad, you wanna.... pow! Right?? Arthur experiences considerable confusion, and finally clarity, as he finds himself on both ends of the hitting question.

Plot
The episode starts in a boxing arena with Francine as the referee, and Arthur vs. D.W. set to duke it out in the ring. Buster is in Arthur's corner, while Nadine is in D.W.'s. Arthur and D.W. have their mouthpieces put in and the fight is just about to start when Arthur sees another D.W. also apparently sitting in the crowd, and then finds out that the one in the ring with him is actually Binky Barnes in a D.W. costume. Binky says he figured Arthur would rather fight someone his own size. The real D.W. laughs while Binky chases Arthur.

After the episode title card, Arthur is building a scale model of the Bell X-1 Model Plane, which broke the sound barrier. D.W. thinks the set, which is still mostly in pieces in its container, is a broken game. Arthur kicks D.W. out of his room. The next day as Arthur is putting together the plane, D.W. spills one of his paint bottles and runs out of sight.

A few days later D.W. plays with the plane while its paint is drying, which forces Arthur to repaint. The next day, Arthur completes the plane and fantasizes about receiving a blue ribbon for it and perhaps getting to fly the real thing.

After being told multiple times not to touch Arthur's model plane, D.W. disobeys. She holds it up and pretends to fly it around the room, then allows the plane to fall out the window, under the mistaken assumption it will actually fly. The model crashes to the ground, and D.W. finds Arthur to tell him he made the plane all wrong since it doesn't fly. Arthur is about to reply that there's nothing wrong with the plane, only to stop short when he realizes the implications of what D.W. has said, and exclaims in a shocked voice, "What?"

The two of them run outside to survey the damage. When Arthur sees his plane destroyed on the ground, he gasps and picks up one of the broken pieces, shocked and angry. D.W. says she can't understand why, if the plane broke the sound barrier, falling out of a window would break it.

Arthur furiously scolds at D.W. that he warned her not to touch his model, but D.W. doesn't seem to register how angry he is, and continues going on about how Arthur obviously made the plane wrong since it didn't fly. She asks him if he even read the instructions, and says it's not her fault if he made a plane that doesn't fly. In anger, Arthur punches D.W.'s arm, yelling, "I told you not to touch it!" D.W. falls to the ground and begins to cry, loud enough for their parents to hear.

A few minutes after D.W. runs into the house, Jane yells for Arthur to come inside. When Arthur enters, he sees David applying ice to the spot on D.W.'s arm where Arthur hit her. She cries when he puts it on her wound because the ice is so cold. Jane tells Arthur to apologize to D.W., but he refuses because she destroyed his plane, which took him a week to build. Arthur says D.W. should apologize to him, since he had warned her repeatedly not to touch his plane, and her failure to comply resulted in the destruction of all his hard work. As David passes by holding D.W. in his arms, she bitterly says to Arthur, "You're bad!" Arthur and his mom and dad go into the living room to further discuss what happened.

David tells Arthur he is now grounded from watching TV for a week for what he did. Arthur thinks his parents aren't even acknowledging what D.W. did to his model plane, which Arthur sees as absolutely unfair. Jane tells him they will deal with what D.W. did, but what he did was wrong, too. Arthur still disagrees that he overreacted by hitting D.W.

The next day, the Tough Customers hear about the case and dare Binky to hit the next person that walks by (which happened to be Arthur) to prove that he is still tough.

Binky refuses to hit Arthur, so he avoids looking at Arthur for the rest of the school day so he wouldn't have to hit him. Arthur discusses it with his friends, and Francine asks him why he wouldn't apologize.

After second recess, he discusses it with Fern, and she tells him that D.W. is "just a little girl," and that most kids her age don't know how to compare models with actual things; but he compares what she's said about D.W. to "a tornado being just a little wind".

After school, right by the Sugar Bowl, Arthur runs towards Binky and the Tough Customers and tells Binky that he dropped his pen when he ran out of school. So Binky is told to hit Arthur, which he does, making Arthur feel hurt and embarrassed.

When Arthur is home, he learns that Binky kind of did him a favor by showing that it was very mean for him to hit D.W. because her feelings were hurt. In the hallway, Arthur says he's sorry to D.W. for hitting her and she says she's sorry for wrecking his plane.

She asks him what kind of plane doesn't fly, and he tells her, "A model plane." D.W. now having learned her lesson, responds by saying that she didn't know and that she was a child, after all, and to give her a break.

The next day, Binky apologizes to Arthur, who has learned his lesson, and Arthur thanks him. Then Molly invites Arthur to join the Tough Customers, but Binky dissolves the club and tells them that making someone to do something they don't want to do is wrong. Binky decided to found a new club with no violence, and will "clobber" anyone who breaks that new rule.

Trivia

 * This episode was rated TV-Y7 for Arthur punching D.W. It is changed to TV-Y later.
 * Arthur's middle name is revealed to be Timothy.
 * Both Arthur and D.W. got hit on the left arm.
 * During the week in which Arthur made his plane, he wore more different outfits than he's usually seen wearing in most of the series.
 * Arthur saying that Binky's huge is a reference to "Bully for Binky."
 * In the later episode "Bleep," Arthur was working on another model plane as a replacement for the one D.W. broke in this episode. But in that episode, D.W. said the curse word, which made him drop and break the second plane.