Two of the men on the crew dislike each other intensely. But, at one of the high points in the movie, when one of these men gets a fishing line wrapped around his leg and gets pulled into the sea, his enemy coworker pauses for not even a second before he dives into the freezing ocean to rescue him. Hundreds of thousands work at great risk in the normal course of daily life. This movie shows the daily dangers of fishing for huge swordfish off of a small vessel. None of this dangerous work people do to provide the basic needs of society can be done alone.
Commercial fishing is intensely collaborative work.
In fact, one's very life is often in the hands of one's coworkers. I used to think of this often when I worked in a steel fabrication shop with overhead cranes carrying tons of steel beams, plates, or pipes up and down the shop floor. And it's an important thing to know.