sentences:  Piñeyro, a former Argentine airline pilot, makes his case in the documentary using diagrams, 3D animations, interviews, hidden cameras in the control tower, and a few props.For example, at one point he spills out a bag of plastic airplanes and equates it to the number of planes the air force has lost due to negligence.The film is heavily based on the Austral Líneas Aéreas Flight 2553 plane crash.