Watch Long Lost Son: Law student Kristen Sheppard drives her husband Quinn Halloran, who had hoped to start a new life together on the Florida Keys, to despair, stubbornly preparing a divorce. One of the monthly weekends he has with their 4 year-old son Mark, his sail yacht Ocean Dreamer reports losing a mast and is declared lost at sea without much hope for a survivor. Fourteen years later, now an attorney an remarried to Steve Collins, she recognizes on friends' Caribean holiday video an allegedly Canadian father John Williams and his son Matthew running a yacht, Phoenix, as Caribean Dive Adventures for tourists on the island Santa Alicia as Quinn and presumes the bright athletic boy to be their Mark....