thing happened, i could see her mouthing to me, "are you all right?" >> i'm all right. >> he returns to his patrol car and immediately pursues the biker. he also radios dispatch. >> i just got drug by a motorcycle. high rate of speed. north on i-95. >> in this line of work you hear signs. you know, people who you've worked with. that just didn't sound normal. >> deputy will ferrell is a mile away when he hears his friend's call for help. >> you start hearing it in his voice. you start hearing that adrenaline, you know, tired sound. >> white motorcycle. black leather jacket. hispanic rider. some kind of a tat of a logo on the back. >> musto's call sets off a countywide manhunt for the suspect, mobilizing officers, patrol cars, even helicopters. meanwhile musto's lost sight of the biker and pulls over to the side of the road. >> i may have video of the tag.