In this gripping French thriller, the story unfolds aboard a nuclear submarine where a young sonar expert, played by François Civil, must use his unique abilities to prevent a potential catastrophe. The film, directed by Antonin Baudry, delves into the high-stakes world of naval warfare, where every sound can mean the difference between life and death. With a strong supporting cast including Omar Sy and Mathieu Kassovitz, the tension is palpable as the crew navigates through a series of intense challenges. While the film has not received major awards, it has been praised for its realistic portrayal of submarine operations and its suspenseful narrative. For those interested, it can be viewed for free on 123Movies / Movies123.