An officer discovers a demon lurking inside an abandoned building; a paramedic is trapped inside a speeding ambulance with a ghost.

A Chicago cop faces an evil entity in a bar; a rookie officer patrols the haunted floor of a courthouse.

Paramedics aid a woman tortured by a spirit; an officer helps a man being stalked by a dangerous creature.

The restless dead call out to an officer; a night patrol encounters a mysterious light in the sky.

A voice compels first responders to a deadly crash; officers help a woman tormented by voices.

Officers witness the beginning of a monstrous legend; an officer comes face to face with a ghost on a Civil War battlefield.