|"Muffy Takes the Wheel"|
|Number in season:||2B|
|Original Airdate:|| October 16, 2012|
April 4, 2013 
|Written by:||Jon Greenberg|
|Storyboard by:||Gerry Capelle|
"All About D.W."
Muffy enlists her dad to help her make a winning car for the 1st Annual Lakewood Derby, but he completely takes over.
Arthur talks to the viewers about how that they can ask for help, but sometimes the helper takes over. D.W. is playing a computer game when Arthur helps and then Mrs. Read comes and then Grandma Thora comes. D.W. leaves and says the game is for the birds.
Mr. Ratburn tells the class that they are going to make a race car out of a block of wood, for the 1st Annual Lakewood Derby. Everyone brags about that they will be the winner and Muffy says that they will all lose. Mr. Ratburn says that their parents should help for the tools but the work should be done by themselves.
Mr. Crosswire comes and Muffy asks dad if he could help her make the race car. Mr. Crosswire remembers doing the same project when he was a kid and he won the blue ribbon. Mr. Crosswire starts helping and Muffy makes an idea. Mr. Crosswire shows 3 cars and Muffy likes the 3rd one. Mr. Crosswire starts talking about the list of things they need.
At school, Buster shows a picture of a sailboat with wheels and Francine says that she knew the idea would be crazy. Muffy comes and asks if Buster could build it. Buster moans because he didn't know he had to build it. Arthur asks Muffy to see the drawing of her car. Muffy lies that it was her idea, which was actually the car that Mr. Crosswire showed.
Mr. Crosswire is showing Muffy how to make the shape of the car. Mr. Crosswire starts taking it over. Then Muffy is rubbing on the car. Muffy says that her hands are tired. Mr. Crosswire says that he will take over, and tells Muffy to watch the technique. Muffy asks what's next.
Mr. Crosswire is checking the weight of the car, and keeps on taking off and on one some metal tool. He says it's heavy and then it's light and it goes on.
Muffy sees Francine's design in the Sugar Bowl and likes it, it's her. Francine says it's not finished yet. Francine asks how the race car is. Francine catches Muffy saying that it's her dad's idea.
Muffy is at home and is thinking of what to say to Mr. Crosswire. Mr. Crosswire shows the car's speed in a course. In a fantasy, Muffy's dad gets sad of not using his idea and gives a car at Crosswire Motors to Timmy Tibble for a bicycle. After the fantasy, Muffy changes her mind of saying anything. Soon, the car is finished and Muffy is going to sleep. Muffy decides to make a car by herself after seeing Mr. Crosswire's car. She calls Bailey to help her make the car and stays up all night.
Next morning, Muffy shows her dad the car she made. Mr. Crosswire asks why she made her own car and Muffy says it was her dad's car. Mr. Crosswire realizes that Muffy is right about the car.
At the Lakewood Derby, Muffy wins round 1 and in the finals, she gets 2nd place with George being 1st. Francine says that Muffy really has cars in her blood.
Mr. Crosswire is satisfied that Muffy got 2nd place and Muffy gets surprised when she sees that they're going in the same car that was shown earlier.
- In the beginning of the show, D.W. struggles playing "Cranky Bees", a parody to the popular game "Angry Birds".
- The Lakewood Derby is a reference to the Pinewood Derby, where eight year-old boys compete in a race using cars built out of the aforementioned wood.
- This episode's plot is similar to a combination of "Sue Ellen and the Brainasaurous" and "Muffy's Art Attack".
- George wins another contest.
- Binky's derby car was only a block of wood with wheels, similar to his other low-effort wood projects, like in "Arthur's Dummy Disaster" and "The Silent Treatment".
- Muffy is accused a third time of stealing credit. The other times were "How the Cookie Crumbles" and "Muffy's Art Attack".