Qantas Airways Flight 72 cruises at 37,000 feet to Perth, Australia from Singapore. Suddenly, the highly automated A-330 fires off a series of contradictory warnings and repeatedly nosedives toward the Indian Ocean. Thanks to the heroic flying of a former fighter pilot, the accident does not end in all-out disaster, but the danger is far from over. With almost 600 A-330s in service around the globe, investigators must find out what went wrong before calamity strikes again.