honest with you. i thought by the second time that there's no way that a person could sustain these two horrible collisions and walk away. she's very, very lucky to be alive. >> and so is officer decarlo. >> teamwork in law enforcement is key. lieutenant benson works for the woods cross police department, i work for the north salt lake police department. but regardless what agency we work for, we're partners for each other and we look out for each other. and end of the day, we want to make sure we all get home to our families. coming up -- a gun battle. at 100 miles an hour. >> i knew that it only ended two ways. one, he'd wreck out and survive, or two, he'd be shot and killed. >> when "caught on camera: dash cam diaries" continues. i've smoked a lot