The boys start stealing teeth from less fortunate children and selling them to the Tooth Fairy at a premium.

The girls of South Park Elementary challenge the boys to a sledding race and Cartman gets sentenced to Juvenile Hall for 13 years.

Timmy is excused from class when he is diagnosed with Attention Deficit Disorder.

A family of quintuplets takes up residence in South Park and a media circus surrounds their every move.

Cartman goes online to find older friends when he decides that Stan, Kenny and Kyle are too immature to be his friends.

Kyle needs a kidney transplant and Cartman is discovered to be the perfect donor. Cartman offers his kidney to Kyle -- for the price of 10 million dollars.

Chef's passionate protest against the South Park flag enflames the entire town, including the children.

The boys form their own boy band, and everyone in town is lining up to audition for a spot as the fifth band member.

Priest Maxi's threats of eternal damnation have the boys racing to make their first Confession and Holy Communion.

Satan is torn between two lovers as he tries to choose between his new boyfriend and his ex, Saddam Hussein.

Chef gives the kids the antidote -- and it works.

Chef tries to stop the Ritalin craze.

Timmy rules at the Battle of the Bands.

Timmy's disability gives him trouble in class.

Timmy goes to the principal's office.

Timmy is diagnosed with ADD.

Timmy is excused from homework because he has ADD.

The doctor diagnoses the whole class with ADD.

Timmy joins "Lords of the Underworld."