It's an animation of the C-5 crash in Delaware. It shows the aircraft, and along the bottom and side of the screen, information such as angle of attack, airspeed, engine settings etc. That, and the CVR recording.
It's very clear what happened, in that the aircraft had one engine shut down, and the pilots selcted too much flap, and chose the visual approach rather than the ILS. That let them get too low, and when the pilot flying failed to throttle up one of the engines--confusion over which engine was shut down, and which were still functional--the two engines running at full power didn't have enough thrust to reach the runway. The aircraft stalled, landing in an open field short of the runway, and broke up.
It's weird to hear the pilot saying, "Guys, I'm getting concerned here. We've got nothin left..." and then the anunciators warning of ground proximity, and "don't sink, don't sink, don't sink" follwed by "stall, stall, stall..."