Overview: The state-of-the-art Russian aircraft Sukhoi Superjet 100 takes flight on what's meant to be a tight, 30-minute loop over Indonesia to impress potential buyers and journalists. But the trip turns catastrophic after pilots lose their way in the clouds and veer straight into a mountain at 240 mph. Just reaching the wreckage will be one of the most challenging salvage operations Indonesian investigators have ever faced. Finding an explanation for the crash will prove just as troubling.