Detective Conan: Black Iron Submarine

While visiting an island, a young detective sneaks aboard a security boat bound for an offshore facility linking surveillance cameras used by police worldwide. After an engineer is abducted, a threatening presence emerges beneath the waves, drawing the detective and his allies into a dangerous confrontation involving advanced technology and buried secrets.

My take

You’ll enjoy this if you like suspenseful anime mysteries, high-stakes technology, and underwater action, especially in the style of Detective Conan: The Scarlet Alibi; Not for you if you want a tightly developed puzzle.

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