Season 3, Episode 11 Knock Knock, Who's There? Wipeout.

First Aired: August 3, 2010

Moving Big Balls, the Door Knock and Pendulum Shape Shifter are among the obstacles faced.

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  • Premiered: June 25, 2008
  • Rating: TV-PG
  • Premise: Contestants compete on an extreme obstacle course for a $50,000 prize. (more)

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