Andreas's rescue team must find out what happened to a duo. They found only amnesiac Annie Sterzinger, who made a fall in a rock crack and can't even remember if she was with her missing brother in law Paul Zeidler. Husband Benno Sterzinger keeps quiet about his part, actually on the search for a gold cons treasure which was hidden during World War II, during which the men got stuck in an underwater cave.
—KGF Vissers