At just 24 years old, Rebecca Coriam had her whole life ahead of her. Her love of physical fitness and knack for teaching made her perfectly suited for her job in Youth Activities aboard the Disney Wonder, an enormous, high-class cruise ship. On March 22nd, 2011, Coriam vanished from the vessel. The distraught parents and friends of Rebecca puzzled over the cruise line's official explanation -- that a rogue wave had swept her overboard. Almost a decade later, the mystery remains: What happened to Rebecca Coriam?