A romance built on deception spirals into a dangerous web of false accusations and violence, culminating in a shocking confrontation with shots fired.

In what looks like a planned ambush, a man is found dead in his garage in Arizona. Police look into a romance gone wrong to find his killer.

As a wedding nears, a gunman kills a mother at home. When detectives can't expose the lies, they call in Texas Ranger Holland to draw out the truth.

In New York City, surveillance cameras help find some bandits after a daring heist. In Colorado, cameras record a murder, robbery and subsequent arrest.

Surveillance cameras in Ohio capture a drive-by shooting in which a three-year-old boy dies. In Louisiana, a police officer's son is shot dead in a nightclub.

A wealthy New York financier is found murdered in his mansion. Video surveillance may have captured the event, but investigators go down a winding road.

In 2008, Houston mum, Tina DaVilla, is out with her baby when she's attacked in a parking lot. Soon, similar crimes hit the city - are they related?

A young woman acts erratically at a restaurant and police take her into custody. They release her in the middle of the night - and she disappears.

Officers find a Georgia high school senior's strangled body in flames, sparking a long quest for justice. In South Carolina, a college student disappears.

Fear grips San Diego after police find a murdered woman's body tossed over a highway bridge. Investigators are led to a suspect that shocks everyone.

The murder of a hardworking Syrian immigrant in Jacksonville, Florida, uncovers a history of theft and violence spanning years that shocks police.

Bradyn's parents panic when they can't reach him, and their alarm increases when they realise he's stolen a handgun. What is he running from and where is he heading?

Tom is desperate about his wife's disappearance but when her boss voices doubts about his character to police he falls under suspicion. Can phone records solve the case?

Friends Debra Coffey and Melissa Lewis both work at a Florida law firm. When Melissa's body is found in a canal, Debra is wracked with guilt as a dark secret is revealed.

The Shahanazaris moved from Iran to California for a better life. But when youngest son, Chris, is killed in a violent home invasion, his brother fears he is to blame.

A deserted bloody vehicle has detectives thinking murder. Their investigation leads them into the world of Florida pageantry and an unlikely suspect.

In Orinda, California, the "Bobbies" function like a high school sorority. When someone murders one of their own, every Bobbie becomes a suspect.

Two teens are shot dead on a remote Florida beach in broad daylight. But with two jurisdictions on the case, leads are scarce - until an unexpected call comes in.

22-year-old mum, Shawn Williams, goes to the store one night and never returns. Her body is found the next day along an Oklahoma river. Is the killer a man in her life?

Steve and Amy travel to Ohio to help a man who believes something on his property is attacking his mother. Amy hypothesises the land is suffering under a curse.

Kesha and Jojo Fletcher trek through the dark abyss of Mount Shasta. They enlist Bigfoot expert Ronny LeBlanc to help them spot the mythical beast.

Demon hunter Tim Wood is called on to expel an evil presence from a historic Texas mansion. A strange doll on the property reveals a spine-chilling premonition.

John and Chad investigate Holmesburg Prison, looking into reports of an oppressive paranormal energy, which some claim is related to a century of murder.

News of violent hauntings, evil entities, and child spirits has John and Chad searching for a portal at the Farrar Schoolhouse. But what will they discover?