The trawler Marie-Morgane sinks suddenly and inexplicably with all its crew, including Captain Lenormand and his son. When Nolwenn Lenormand hears the news she's convinced that a submarine on maneuvers must have been responsible.
| Directing | Adeline Darraux | Director |
| Writing | Camille Autain | Writer |
| Writing | Jérémie Bonheure | Writer |