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.

A paramedic experiences a deadly shoot-out, and a ghostly surprise; officers encounter a convict with a supernatural power.

An officer comes to the aid of teenage girls targeted by a creature; rangers investigate a building on haunted lands.

A Sioux police chief must save his community from a mythical creature; officers come face to face with an urban legend.

An officer is lured by the ghost of a murdered student seeking vengeance; a deputy is chased by a UFO.