Matthew Cooke wrote the spec script which Steve Golin is attached to produce. The film centers on a group of corrupt cops who are planning a heist, when they realize they have to shoot one of their own to pull off the job. The lead character will be a younger, straight-laced officer the group choses as their victim. The title of the film refers to the police code which indicates that a cop needs immediate assistance.
The site also reports that both LaBeouf and Hillcoat haven't entered into official talks to star and direct the project, but they are both, "definitely interested in Cooke's script." While the project isn't currently set up at a studio, the site indicates that Warner Bros. is interested in the film.
We'll be sure to keep you posted with any further news regarding Triple Nine as soon as we have more information.