A young father calls 911, gasping that he accidentally shot himself while working on a farm. Police race to find him and keep him on the line. They hear a second shot and reveal an astonishing twist: this shooting was no accident.

A series of bizarre 911 calls come in to police in two cities from a serial killer confessing his crimes. The man becomes known as the Weepy-Voiced Killer, due to his strange, whining voice -- and many young women will fall before he can be stopped.

In a harrowing call, a terrified woman tries to give police clues: there's a gun, she's near a river, and her kids are at risk. After police find her body in the river, they learn a stomach-churning truth about a killer who's been a predator for years.

A woman returns home to find her husband unconscious and bleeding on the floor of their horse barn. A 911 operator coaches her through CPR, but it's too late. Finding clues in the call itself, police unearth a sick plot to kill a beloved father.

A former cop calls 911, struggling to explain he's been shot multiple times and his girlfriend has been abducted. Investigators race to save the caller -- they need his help to find the missing woman and the gunman who might be a drug cartel hitman.

When a husband finds his wife with a cord around her neck, he makes a heartbreaking 911 call, pleading for someone to come save his beloved. A missing phone, surprising crime-scene clues and a mystery man all complicate this story of love and loss.

A man makes a troubling 911 call to report that he accidentally shot himself. But another call reveals a shocking twist.

Jennifer makes one last 911 call that ultimately helps investigators bring her killer to justice.

What happens when it's not the victim on the other end of a 911 call -- but the killer?