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The Troop Season 1 Episode 12

When a veteran Troop member named Bianca Stonehouse replaces Mr. Stockley due to his dentist appointment, The Troop discover that she is a monster in disguise, there to help another monster escape and to find the real Bianca Stonehouse before its too late.

Serie: The Troop

Episode Title: The Substitute

Air Date: 2010-01-09