When a breakout of headlice hits South Park Elementary, Mrs. Garrison refuses to say which child brought the plague to the school. So, Cartman takes it upon himself to find out who it is so the kids can make fun of them. Meanwhile, a louse Travis, is desperate to save his fellow lice from imminent destruction from a conscious world.

Aired on 03/21/2007
22 :
7.99/10 • 1664 voting

South Park • S11E03
Trey Parker Trey ParkerEric Cartman / Stan Marsh (voice)
Matt Stone Matt StoneKyle Broflovski / Kenny McCormick (voice)
Mona Marshall Mona MarshallSheila Broflovski (voice)
April Stewart April StewartSharon Marsh (voice)
Adrien Beard
Jonathan Kimmel Jonathan Kimmel
Kyle McCulloch
Trey ParkerDirector
Trey ParkerWriter