From the perspective of military fans, there are still quite a few problems with this movie. For example, a submarine bombed like that cannot dive so deep, destroyers are not so easy to be deceived, and submarines will not move so fast with the current. As for the kind of wind and rain, you must find something wrong, and use fish without being noticed at all. It is even more impossible for lightning to strike a submarine. But this is an American movie... so let's be tolerant.
The plot is average, a typical American action movie. When the hero finds a flaw when he is almost desperate, he fights back and kills the bad guys. But seeing the duel of two people turn into a duel of two ships, this new form is still worth seeing.
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