Thunder Bay, located in Lake Huron in Michigan, is home to more than 100 shipwrecks, some in waters as shallow as fifteen feet.  The wrecks, which include everything from wooden schooners to sidewheel steamers and modern freighters, shed light on 200 years of Great Lakes history.  Scientists are puzzled as to why this body of water, nicknamed "shipwreck alley," is so dangerous.  This one-hour special follows a National Oceanic and Atmospheric Association deep-water expedition to shed light on the forces in Thunder Bay that are the catalysts for the wrecks.This product is manufactured on demand using DVD-R recordable media. Amazon.com's standard return policy will apply.