It's August 6th, 2005. Tuninter Flight 1153 is flying to the Tunisian resort island of Djerba. It's high above the Mediterranean when suddenly, its right engine fails. As the pilots begin an emergency descent, their situation gets much worse. Their second engine also stops working -- the plane begins falling towards the sea. Despite numerous attempts, the crew can't restart their engines. They make a desperate choice - to attempt a landing at sea. Twenty people survive - but fourteen of the 34 passengers are killed. Investigators discover a shocking mistake - that could effect one of the most popular turb-prop passenger planes in the world.