tires, and you don't know which one will end in another crash. >> by the time task force 39 arrives, the couple's brush with death is over. they escape with minor injuries. >> it was mainly neck and back pain. so we c-spined them and transported them to a hospital. >> if i could pick the perfect interview for a scene like that, i would have to turn the camera on myself, because no one else witnessed it the way that i witnessed it. coming up -- a driver uses his dash cam to deliver some hit and run justice. >> oh! >> this was somebody who was run over. wait there. are you not leaving anywhere. >> i have to get to work. >> stop. >> somebody trying to get away with it. and then a race car is demolished in seconds. >> i saw, wow, we have a lot of