It’s the 17th of July 2014 and Sydney man Jack O’Brien races through Amsterdam’s Schiphol Airport, desperate not to miss his flight home – Malaysia Airlines Flight MH17. A few hours later, Jack’s flight would break apart in mid-air above eastern Ukraine and plunge into a sea of sunflowers, killing all 298 people aboard. Jack would never make it home. As the heart-wrenching news reached Jack’s family and the relatives of other victims, Australian officials embarked on an urgent mission to find the truth of what happened. It would become one of the most complex and dangerous international policing missions of our time.