By scanning the location of underwater sunken ships, treasures, and even cities, the program attempts to answer what they look like, how they arrived there, and whether they have hidden any secrets.
7.9日本 / Kamen Rider × Kamen Rider OOO & W featuring Skull: Movie War Core/Masked Rider × Masked Rider OOO & W featuring Skull: Movie War Core/幪面超人×幪面超人/OOO/&/W/feat./Skull/Movie/大战/Core/蒙面超人×蒙面超人/OOO/&/W/feat./Skull/Movie/大战/Core/