In Scotland, by the North Sea, Chris Lemons is briefly sharing his diving plans with his fiance. Later, he goes to a place where he and a team of other saturation divers work to maintain undersea gas lines under the North Sea. He is assigned to work with Duncan Allcock and Dave Yuasa.

The ship takes off and goes out far on a stormy night. The divers get transported in special units called diving bells.

While out at sea, Duncan and Dave begin work on an undersea gas line manifold. Chris needs to stay in the bell to monitor their status and give out umbilical lines that offer them oxygen, power, and communication.

At some point, Chris goes underwater. He is breathing rapidly. Dave tells him that he has to slow down. Without warning, Chris’s umbilical line breaks and he is separated from everyone.

Meanwhile, the ship on the surface of the sea is malfunctioning. The system is also shutting down.

Minutes go by as Chris is stuck at the bottom of the sea, running out of oxygen. He even makes involuntary movments as a result.

Dave is sent to rescue him. But he faces a few obstacles along the way.

Will Chris survive? Or will he die?

I have to admit that although this film was based on a true story, I felt that there was not enough tension for the first several minutes. But it might have been accurate to the real-life situation.

The tension levels did increase to the point where I would worry about Chris and if he would survive. And that did keep my attention, especially when the film revealed how much oxygen he had left and how long he went without any.

Even though the characters were not as developed as I’d preferred, they remained likable. I especially enjoyed Chris’s relationships with Dave and Duncan as well as his fiancée. She had a minor role in the story, but I still liked her.

One thing I wished to know was what year the film took place in. It was probably during the mid or late 2010s since Chris talked to his fiance through video call on a tablet.

Like with any good movie, this one had a lot of twists and turns. It also has a little bit of profanity, although it is rated PG-13.

Overall, I enjoyed watching Last Breath. There is also a documentary about this situation with the same title. It was released in 2019.

I give this film 4 out of 5 stars and would recommend it.