Arthur's Knee

"Arthur's Knee" is the second half of the 14th episode of season 2 of the animated children's series Arthur. It originally aired on February 14th, 1998.

Plot
Arthur and the Brain are doing a school project on Ancient Rome, and for their project are creating a life-sized chariot similar to that of the Romans. When Arthur tests it, he falls off due to a bad wheel, and the Brain says they need a better one to fit the axle. Arthur agrees to get one while the Brain goes home for lunch. D.W. asks where he's going, and Arthur tells her he's going to find a spare wheel at the dump, which he is not allowed to go to. D.W. threatens to tattle on him unless she comes along, and Arthur reluctantly agrees.

At the dump, Arthur breaks into the dump while D.W. watches from the high ground above. Clawing through the dirt, Arthur finds a wheel from a broken bicycle, and climbs back up. During the climb, he ruins his sweater and cuts his knee on a lima beans can, leaving a painful wound. Arthur tosses the bike wheel away and the two siblings return home, avoiding their dad in the kitchen to avoid being caught. Arthur cleans the wound himself, but tells D.W. not to say anything to their mom.

D.W. makes a card for Arthur, and doesn't know what to do because of the promise she made to him. Nadine tells her that maybe she should tell anyway. Brain returns and D.W. asks him to see Arthur's knee, which is still stinging badly. D.W. starts crying, saying Arthur is really hurt. The Brain agrees and explains to Arthur that by cutting his knee on a dirty can, he put himself at risk of various illnesses, and could develop a fever as his body tries to kill off the infection. D.W. reminds Arthur about how she bravely admitted to climbing the tree in an earlier incident, and tells Arthur to be brave too. Arthur finally comes to his senses and asks for his mom.

At the doctor's, Arthur's wound is properly cleaned and he is given a tetanus booster to avoid infection. His mom explains that she is proud of Arthur for coming forth with the truth, but still has unfinished business with him as he tries to leave the car. Later, Francine and Sue Ellen ask if Arthur wants to play ball, but Arthur says he decided to stay home to think about what he did at the dump. They admire his decision until D.W. arrives and blurts out that Arthur was actually grounded by his parents, and his friends leave laughing. D.W. leads Arthur inside, promising to keep him company until he's no longer punished.