2013's Lone Survivor is based on an incredible true story ... Operation Red Wings, also known as the Battle of Abbas Ghar, was a United States military operation in 2005 during the war in Afghanistan.

The lone survivor got out of the hospital Monday afternoon ... “One of the deputies on scene advised there were three deceased victims that had all appeared to be ejected from the vehicle ...

Derek and Catherine died at the scene. Alex and Catherine were airlifted from Warrensburg and transported to Research Medical Center in Kansas City. However, Catherine died after donating her organs.