Plot summary
Malcolm coaches Dewey on how to "throw" an IQ test so he will not end up in the Krelboyne class. When he refuses and announces his intent to join the Krelboynes, Malcolm enlists Reese to take the test for Dewey. However, his poor test-taking skills lands Dewey in the emotionally disturbed "Busey" class instead of keeping him in the regular class. Reese tries to figure out what type of genius he is. Hal and Craig enter a Dance Dance Revolution -style contest. In the cold opening, during a public ceremony of blowing up a dam, Otto and Francis realized they swapped the dynamites meant for the dam for the picnic cooler meant for the audience, resulting in the destruction of Francis' truck.
Credits
Adapted from Wikipedia contributors, Malcolm in the Middle season 5. HTML formatting and reference markers removed.