A K9 unit tracks a murder suspect through a residential area, and a terrifying home invasion leads to a car chase and a gunfight with police.

A Texas officer confronts a wanted felon who pulls a gun on him; a convoy of Ohio police cruisers screams through downtown Columbus in pursuit of their own car; after a high-speed chase, a fleeing driver has a surprise for Macomb County Deputies.

A man fights for his life in a wrecked sport utility vehicle, a fire traps a woman and a car chase turns into a foot chase through the forest.

Police try to save a man from a burning garage, but they don't know if this is a rescue mission or an ambush. An officer is violently attacked with his own baton, and a young mum and her kids are about to be swept away by a sudden torrent.

Officers race against the clock to keep the public safe. They hunt a dangerous felon through a neighbourhood, respond to a gas leak in an apartment, and take part in a tense standoff after a double shooting.

An officer risks his life to save a drowning couple from an icy lake, and police respond to a guy wielding a knife at a nearby Target.

Officers pursue a speeding driver with a suspicious package, chase a truck driving recklessly through a neighbourhood, and find themselves in danger after hunting down a thief.

Officers go above and beyond to keep danger off the road; a semi-trailer truck races against the traffic on a highway; an officer hangs onto a fleeing car; burglars attempt to flee from a robbery.

A gas station robbery leads to a life-threatening attack on a police officer, a routine arrest spins out of control and a suspect throws himself into alligator-infested waters to evade arrest.

The streets turn deadly when the driver of a stolen vehicle tries to flee. A Sheriff's K9 is let loose on its first pursuit, and a spree of home invasions leads to a three-day manhunt.

Police officers face critical situations. A gunman holds his teenage daughter and wife hostage in their own home, and deputies battle to regain control of rioting inmates in a county jail.

When lives are in danger, the stakes are high for police officers; a man fires a gun at a packed bingo hall; a woman plots to have her husband murdered; a rookie officer must rescue passengers trapped inside a vehicle that's stuck under a train.

Police go the extra mile to keep the public safe; an officer rescues a woman from a horrific car crash; police chase down a thief who will do anything to get away; a domestic dispute escalates into a fatal shootout.

When police arrive on the scene events take an unexpected turn; a car crash leads to a search for a missing baby; a rookie cop ends up pursuing an armed suspect; an unconscious man needs rescuing from a burning car.

Police stop armed suspects from killing sprees; an FBI agent uncovers a terror plot targeting court officials; a gunman endangers members of the public when he fires shots on a packed bus.

A suspect speeds off in his vehicle while an officer is trapped half inside the car; police rescue a man stuck on train tracks; a suspect runs over an officer with his car.

A car sinking in a freezing river traps a mother inside; a high-speed pursuit ends with an officer ensnared by a live high-voltage power line; police race to resuscitate a child.

A nighttime chase to nab a notorious gang member ends in a shootout; police risk their lives pursuing a reckless runaway driver, and an armed robber will stop at nothing to escape arrest.

Police officers put their lives on the line; a SWAT team confronts two murder suspects barricaded in their home; officers chase a suspect who steals a delivery truck; an officer risks his life to save a woman trapped inside an inferno.

Officers race to catch a bank robber who opens fire at police; teenage female fugitives speed away from officers before wrecking their vehicle; a suspect attempts to flee police by swimming for freedom.