When did The Simpsons Season 18 Episode 21 air?
The Simpsons Season 18 Episode 21 aired on May 20, 2007 at 8 PM ET.


Just a product of society that's lost its good manners.
Set in Springfield, the average American town, the show focuses on the antics and everyday adventures of the Simpson family; Homer, Marge, Bart, Lisa and Maggie, as well as a virtual cast of thousands. Since the beginning, the series has been a pop culture icon, attracting hundreds of celebrities to guest star. The show has also made name for itself in its fearless satirical take on politics, media and American life in general.

In a parody of "24," the school's Counter Truancy Unit tries to stop three sixth-graders planning to disrupt the school bake sale with a stink bomb.
Direct answers for episode-level questions and details.
The Simpsons Season 18 Episode 21 aired on May 20, 2007 at 8 PM ET.
This episode runs for approximately 23 minutes.
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