McNeil Island off the coast of Washington state is inaccessible by any road and not welcome to most visitors. Once the site of a state prison, the island is now home to a most unwelcome and dangerous inhabitant: Violent sexual predators who have served their prison sentences but are deemed too dangerous to return to society. These men have been banished from society and largely forgotten about. And that last part, Detective Lindsey Wade finds out, is a problem. Lindsey specializes in DNA cold cases and she knows that some of the men of McNeil Island might be responsible for other crimes. She wants to test and record their DNA. As she works to make this happen, she stumbles upon a decades-old murder. Will she find the answers on the island of the banished?

Your favorite Scottish detective, retired chief constable Tom, brings us a gruesome case from the 1820s of how two depraved criminals went on a year-long killing spree while the rich and powerful of Edinburgh, Scotland all but turned a blind eye. Ultimately, the crimes of these two men brought about police reforms and social change but not before there were bodies everywhere.

In a small town, one act of arson can be devastating. Detective Chris gets the call early one morning to investigate the cause of a fire at a family-owned arcade. The case quickly evolves into a burglary investigation and then a manhunt when the men thought responsible hit another business. Their destructive path finally leads to a deadly showdown.

Police discover the body of a woman near the bottom of a flight of the stairs that lead to her bedroom. She’s been shot in the head and the main suspect is the man she just broke up with. Her young children are also in the house, hiding in a closet. Detectives Chad and Greg hunt the suspect down and find a pattern of dangerous domestic abuse that had never been reported to police.

A German couple comes to hike and enjoy the beautiful Big Sur coastline. As they wander through the backroads, they encounter their worst nightmare – a couple of predators out looking for a soft target. Detective Lins is called to investigate the aftermath and finds a story of tragedy as well as miraculous survival.

A young mother rushes her infant son to the emergency room. Doctors find suspicious bruises and call the police. The investigation uncovers a trail of cruelty and deceit in a case “Classic” retired Det. David will never forget.

A discussion about what happened to Amanda, the victim from episode 4, and how the police department can make changes that will better serve vulnerable victims.

Sheriff Carl returns to tell us about when two factions of the same gang begin to clash. The members are forced to pick sides and, for one of them, it has deadly consequences revealing a labyrinth of alliances and codes of conduct with lethal consequences.

Det. Jay and his team investigate the murder of a homeless man who is found stabbed to death in a public park. After a slow start, the investigation focuses on three men, including a charismatic leader in the local meth community, and an ex-con who’s fled to a nearby state to become a standup comedian.

The fire department is called to a fire in a small community where an elderly widow is found murdered in her own home. Which also happens to be the scene of the fire.

Detective Dan takes us through one of his most arduous and sprawling investigations, as he tracks a prolific serial burglar who crosses state lines, pens a manifesto, and wreaks havoc on multiple small towns.

It was a sunny afternoon in August of 2008, when this Small Town police department began fielding multiple 9-1-1 calls from alarmed residents in a quiet neighborhood just outside of town. The callers told dispatch they had just witnessed what appeared to be the kidnapping of a ten-year-old neighborhood girl as she rode her bike. This triggers multiple agencies in the area coming together in a frantic effort to catch the kidnapper before he disappears with his victim forever.

When a young teenager tells her father that her former stepdad spent several years sexually abusing her when she was younger, Detective Dave is called in to investigate this delicate case, which appears to have little physical evidence and is hobbled by the passage of time.