This cruise was meant to be a happy memory for a family of four, but it turned into a nightmare when their oldest daughter disappeared just a few days into the trip. A missing person on a ship at sea is most often a case of going overboard, but the actions of the crew and statements from witnesses have led her family and the FBI to consider the possibility she met a dark fate on land. This week’s episode is The Disappearance of Amy Bradley - Part 1.