On the road of Briançon, David's car hits a young immigrant chased by the police. Instinctively, David hides him into the boot, and brings him to his home with his wife Gabrielle and his two children. Upset by this teenager's fate, David will help him by all costs.
When his father passes away, a dentist in Paris inherits a plot and the will to build a house on it. The situation becomes tricky when he learns the plot is located in Corsica.
Bill Baker, funcionário de uma plataforma de petróleo em Oklahoma, viaja para Marseille para visitar sua filha com quem não fala há muito tempo. Ela está presa por um homicídio que diz não ter cometido. Mesmo com as dificuldade culturais e sem falar a língua local, Bill decide ficar permanentemente na França e lutar para provar a inocência da filha.
Transferido para Marselha, o magistrado Pierre Michel logo descobre que seu maior desafio será desmembrar uma articulada quadrilha de traficantes de heroína que domina a cidade. Acabar com a Conexão Francesa torna-se sua obsessão e Michel dedica anos de sua vida e um bocado de sua sanidade à missão, acompanhando de perto os passos de Gaëtan Zampa, inalcançável chefe do bando.
Though its aftertitles detailing the history of French nuke experiments suggest otherwise, writer/director Marion Hänsel’s Black Ocean is not a political treatise or a history lesson, instead taking advantage of the remote, isolated environments in which the experimentation took place – as well as the monumental imagery of the act itself – in order to communicate a more universal story about the power of awe. Ocean principally follows three young sailors on a French naval vessel in 1972, who are on course for an unknown destination in order to help carry out the bomb tests they’ve yet to personally witness. The film is essentially divided into two parts: before and after the blast.