Game of Thrones director Brian Kirk has finalized a deal with 20th Century Fox to direct Narco Sub, with Liam Neeson being eyed to star. The project has been in development for several years, with filmmakers such as Tony Scott, Doug Liman and Antoine Fuqua attached to direct at one point. Now that the studio has a director in place, they will focus on securing a deal with Liam Neeson.

The story follows an Ecuadorian drug lord who forces a disgraced Naval officer (Liam Neeson) to navigate a Narco Sub filled with cocaine past the Coast Guard. These much smaller submersible crafts are typically used by drug cartels to ship their illegal drugs between Colombia and Mexico. The ships are so small they are unable to be detected by radar.

David Guggenheim (Safe House) wrote the screenplay, with Ridley Scott producing for Scott Free Films and Simon Kinberg producing through his Genre Films company. Elishia Holmes is executive producing for Scott Free alongside Genre Films' Aditya Sood. No production schedule was given at this time.

Liam Neeson is coming off the action-thriller Run All Night, and he will next be seen in Ted 2 and A Monster Calls. He is currently filming Silence for director Martin Scorsese. Brian Kirk is best known for directing several episodes of HBO's Game of Thrones and he also directed the 2007 feature My Boy Jack. He was also developing the sci-fi thriller Passengers for several years, which now has Morten Tyldum set to direct and Jennifer Lawrence and Chris Pratt set to star.