Professional photographers become the victims of a broad daylight smash and grab in San Francisco. In San Diego, an enraged dog walker goes ballistic when she confronts a speeding driver in her neighborhood. A roadside altercation in Florida turns violent. A woman's car goes over a 20 foot embankment in Charlotte, North Carolina, landing directly on top of an SUV driving on the highway below. And a routine traffic stop in Denver, Colorado turns into two drivers' worst nightmare.