Dead in the Water (2018) on Netflix

Plot summary

A fifty-year-old ice breaker, the Nereus, carries an idealistic crew of women whose mission is to stop illegal fishing boats. The crew works the Pacific hundreds of miles from any shore. A chase pulls the ship off course and into the Devil's Sea, where a body floats in the open water and the crew pulls a stranger from the wreck of a ship. A massive storm then strands them in the middle of the sea, six hundred miles from shore, and they must survive against an unknown enemy. Their new aim is to kill or be killed, and to do it before the ship reaches land.