A high-speed chase in Broward County, Fla., results in injuries; police in Pomona, Cal., look into a domestic-violence situation; and officers in Las Vegas witness an altercation involving a married couple.

A vehicle in Houston is linked to a homicide, so backup is called in; Las Vegas officers respond to a domestic-violence situation; and police in Rancho Cucamonga, Cal., detain two suspicious suspects they find loitering in a parking lot.