brown county sheriff's department. >> we were looking for a white oldsmobile and the husband was following in a dodge durango.o i set up cars on highway 29 hoping we could intercept her. >> even with multiple officers on the road, bolt believes the chances of catching up with the depratt woman are slim, but luck is on his side. after just a few minutes, bolt thinks he spots the white oldsmobile. >> i was kind of actually surprised that there's the vehicle in front of me. i didn't know for sure if it was her, but the car was moving at a high rate of speed passing other traffic. this has got to be the one. she's on i-43. cars are on the shoulder. >> trooper bolt flicks on his lights and chases after the driver, whose speed reaches 120 miles per hour. other drivers move out of the way of those two speeding cars. >> passed a couple vehicles on the ramp, and then i was finally able to catch up to it on i-43 where it proceeded at high speeds up on to the top of the bridge. >> the driver heads on to tower drive bridge, rising 130 feet above the fox river. in the middle of the bridge, she pulls over. bolt has an unea