Captured by the U.S. Government, Mohamedou Ould Slahi (Tahar Rahim) languishes in prison for years without charge or trial. Losing all hope, Slahi finds allies in defense attorney Nancy Hollander (Jodie Foster) and her associate Teri Duncan (Shailene Woodley). Together they face countless obstacles in a desperate pursuit for justice. Their controversial advocacy, along with evidence uncovered by formidable military prosecutor, Lt. Colonel Stuart Couch (Benedict Cumberbatch), eventually reveals a shocking and far reaching conspiracy. Based on Slahi's New York Times best-selling memoir, "Guantanamo Diary", this is the explosive true story of a fight for survival against all odds.