Some of the boys from South Park Elementary find themselves on a balloon ride to an imaginary land. Upon their arrival they're faced with an unimaginable threat.
"Imaginationland Episode I" is the tenth episode of the eleventh season and the 163rd overall episode of the American animated television series South Park. It premiered on Comedy Central in the United States on October 17, 2007. The episode was rated TV-MA LV in the United States. It is the first episode in a three-part story arc that won the 2008 Emmy for "Outstanding Animated Program ". The three episodes were later reissued together, along with previously unreleased footage, as the uncensored Imaginationland: The Movie.