"City of Ghosts" is an unprecedented, on-the-ground transmission from the frontlines of one of the most important battles of our time: the fight against the Islamic State. It's a war being waged not only on the ground, but in the digital trenches of social media.

Academy Award-nominated director Matthew Heineman (Cartel Land) takes viewers into the warzone of ISIS-occupied Syria, where a band of anonymous activists known as Raqqa Is Being Slaughtered Silently wage a counteroffensive against the terrorist group's campaign of propaganda and misinformation.

Armed with video cameras, these intrepid citizen journalists risk their lives to spread the truth about life under ISIS. The unforgettable images they've captured and the stories they have to tell are a wake-up call to the world.