Yes, it’s submersibles again for Tony Scott. Although plot details are hard to come by, the title Narco Sub refers to submersible vessels used by Latin American drug traffickers to get their wares into the US and the suggestion is that tonally the film is reminiscent of Tide and Man on Fire. Frankly, anything even vaguely up those streets will be something to treasure. Fox are producing this one, with David Guggenheim (Safe House, Stolen) on scripting duties.
Source: SlashFilm.