Bashkirian Airlines Flight 2937 is flying with 69 people on board from Russia including 45 school children. The aircraft collides with DHL Flight 611, with the two pilots on board. The collision happens over the Bodensee between Germany and Switzerland and the wreckage ends up in Uberlingen, Germany. 71 people are killed in the disaster. This documentary is a startling and emotional investigation into what caused the disaster.