Deputy Alia is new to her job, so when she responds to what seems like a standard “person down” call, she is pretty calm – at first. But something about what she finds gets her spidey senses tingling. Despite her lack of experience, she decides to trust her gut.

Detective Lindsey is back with a case she’s called her “worst nightmare.” An unknown man has committed a series of home break-ins that include terrorizing of victims and violent sexual assaults. Each time, the suspect only gets more brazen and police are anxious to find a lead. Working with a task force of local agencies, and a specialist who has learned the art of tracking human, Lindsey and her team rush to stop the perpetrator before anyone else gets hurt.

Police receive a phone call from a desperate daughter, who says her father is threatening to take his own life. Officers arrive and find the man sitting in his garage with the car running. They risk their own lives to break in and rescue the man. While the man is recovering in the hospital, he starts to mutter “she deserved it”. An alert Detective Bryson is there to hear it and begins to investigate – he quickly finds that the victim is also a suspect.

Today’s case spans more than 40 years. In the first of two parts, we take you back to 1981 and the senseless rape and murder of Sonia Stone, a young mother living with her daughter in the tony town of Carmel by the Sea on the California coast. A close friend has found Sonia’s body and has called the police. The responding detectives quickly focus their attention on a shifty neighbor whose constantly changing story feeds their suspicions. But this was a time before DNA testing, and the evidence, though solid, is circumstantial. When the prosecutor in the case finally gets some corroboration about the neighbor’s whereabouts the morning of Sonia’s murder, he brings murder charges against Michael Glazebrook. But an adverse ruling and an unreliable witness derail the trial – and start a decades long search for justice.

Crime scene investigations are rarely as dramatic – and definitive – as what you see on TV shows like CSI. That does not make them any less crucial to solving the case. Host Paul Holes takes us through a case he worked on in the late 1990s, where a claim of self-defense was ultimately turned on its head after a thorough and objective look at the nearly invisible trace evidence left behind after the body of a gay man was found dumped in a ditch.

A brutal murder. A primary suspect. But small mistakes made by fellow officers in the early hours of the investigation hinder Detective Lins’ pursuit of the man he believes is responsible for bludgeoning a woman to death in her driveway. But the investigation continues until Lins receives word that his prime suspect is dead. Or is he? Even in retirement, Detective Lins says he’s not ready to give up the ghost.

In a case that feels like it’s out of the 1800s, a detective in Australia’s famed “Gold Squad” gets an anonymous tip that something fishy is going on at a gold mine in remote Western Australia. An investigation turns up a crime ring that’s pocketing tens of thousands of dollars of the precious metal. The hunt turns tragic as a ringleader considers the blow to his reputation for stealing from the only business in town.

Detective Roddy talks about the challenges his small-town police force faced when tasked with solving the brutal murder of a man in a local park. The crime shocked his small Scottish community and changed the way his police department viewed marginalized communities and social media.

A teenage boy stays home from school one day and notices a shadowy figure lurking in the house next door. He investigates and discovers the shadowy figure is a girl… and she’s being held captive by her own father.

Christy was a young girl when her mom was murdered in what was said to have been a botched bank robbery. But it never sat right with her. Years later she had an epiphany, and she started to think her father was involved. She cajoled cops to start a new investigation, but it did not lead to a new arrest. A decade went by and Christy was able to convince a TV show to come in and take another look.

Trevor Walraven was convicted of an unthinkable crime when he was 14 years old. He spent nearly 18 years in prison before he was released. In this two-part conversation, we talk to him about the crime he committed, his co-defendant, how he spent his time in prison, and his emergence as an advocate for giving other inmates a second chance to become productive members of society.

Police arrive on the scene of what they are told is a suicide. But as they begin their investigation a different story starts to emerge.

Sgt. Rick was prepared to issue a routine traffic ticket to a driver who was driving dangerously slow. But when he pulled the driver over, he interrupted a crime far worse than impeding the flow of traffic, proving that there is no such thing as a “routine” traffic stop.

Veteran 9-1-1 Dispatcher, Carrie, sits down with us to discuss how she does what she does and why. As we listen to three of her most memorable 9-1-1 calls we get the lowdown on what it’s like to be on the receiving end of the emergency line in Small Town, USA.

This is the chilling story of a man who, as a police officer, took his police department’s solemn oath to be guided by professionalism, integrity, courage and honor. He also promised that his behavior would meet his department’s standard of honesty and accountability. Then, for 10 years, he patrolled the community, gaining its trust, while simultaneously victimizing those he knew would be too afraid to speak up.