Attack of the Killer Mutant Leeches! is another of the Pocket Sandwich Theatre's infamous audience-participation, popcorn-tossing, comedy spoofs. In this spoof of '50s era drive-in movies, the citizens of a small town discover an environmental disaster that threatens life on Earth. Monstrous murderous mutants menace Muskeg County (whew!) - will popcorn rid us of these pesky critters or are we destined to be latched on to?!!