[Part 2 of 2] After 46-year-old Vitaly Kaloyev loses his entire family in the Überlingen mid-air collision, he becomes consumed by grief. Unable to move on, he pours his energy into finding the air traffic controller he believes is responsible for the death of his wife and children. As Kaloyev discovers whether revenge really is the best medicine, the question emerges – is he a hero or a villain?