Transformers Vol. 1 - Prime Threat [VHS]
A Prime Problem.  Megatron comes up with a devious plan to lure the Autobots into a crevice filled with Korlonium crystals, a deadly mineral that destroys electronic circuitry.  To do this he must first make an exact duplicate of Optimus Prime, Starscream, Soundwave, and the other Decepticons create a diversion while Megatron knocks Optimus unconscious and scans him into a computer.  Now it's time to put their deadly plan into action--replace Optimus Prime with an impostor who will lead the Autobots to self-destruction.  City Of Steel.  The Decepticons have secretly established an underground base beneath New York City's busy streets.  Their goal is to steal its tallest structure, The Empire State building, and turn it into their indestructible headquarters.  From there they will conquer New York.  When Optimus and the Autobots arrive, Megatron springs his trap in Central Park.  Long Haul and Scavenger dig a hole underneath Optimus who falls in and is turned into scrap.  It's up to Bumblebee and the others to save the city and put their big leader back together.