Muskogee officers battle to save an injured woman from her attacker; an undercover agent finds himself at the wrong end of the barrel; in California, an officer faces a knife-wielding teenage girl.

A hostage situation turns into a shootout; police try to stop a knife-wielding man enraged over a midnight pot roast, and officers fear for their lives when faced with an ambush from a hidden gunman.

In New York state, a domestic disturbance takes a violent turn; in Texas, police must break into an apartment to save the lives of two women as their machete-wielding attacker leads officers on a dangerous pursuit.