>> it seems like it's out of nowhere. a 1960s russian fighter jet, bursts out of the sky and comes directly for their car. >> the combat aircraft is an su-24 like this one, designed for low-level strike missions. it can travel at speeds of up to 817 miles per hour. that's nearly 15 times faster than russia's official speed limit for the freeway. >> and you can actually hear like that blast of sound that comes when a fighter jet just appears. and the woman in the car screams. or maybe that was the guy, because i would scream like that woman as well. and then just keep driving. just keep going. just another day in russia, why not? >> after the video goes viral, military prosecutors investigate airfield safety measures and flight records. but it's still not clear why the pilot is flying this close to a public road.