20/20 Season 48: Episode Guide & Ratings

A secret romance in a remote Alaskan town leads to murder. Police body camera footage reveals clues for a multi-state hunt for the killer.

When a young singer disappears, her family, police and a woman with a prophetic vision launch an urgent search, but it's a set of keys that unlocks the answers.

Jealousy leads to murder and detectives discover the killer was closer than they imagined

When a young mother disappears, authorities dive for clues and answers in a muddy creek.

The episode delves into the details of the crime, the investigation, and the subsequent trials. It also explores the brothers' childhood, their relationship with their parents, and the factors that may have led them to commit such a heinous act.

A flower delivery turns deadly, when a young woman is fatally shot at her front door;

A wife/mom goes missing the night of a Halloween party, and her car is found abandoned by the side of the road. The incredible story of Karen Swift, with exclusive interviews, is ONLY on "2020."

A heart-pounding body-camera video captures moments after a firefighter is gunned down

It was one of the most notorious murders in the Atlanta area when a father was gunned down while dropping his young son off at preschool just days after a mysterious person was seen lurking outside his home with a gun.

Officers race to find a kidnapped woman, not knowing that saving her would lead to the capture of a serial killer.

JonBenet Ramsey's father speaks to ABC News: what he thinks police can do right now to identify her killer. Can new technology solve this crime?

A college teen vanishes while home on winter break. Will messages on his social media help his family's personal search?

When a surprising discovery in the backyard of a family home leads police to a husband and father's killer.

A famed real estate developer, Gary Triano, is murdered in his car by a remote-controlled pipe bomb; money, lies and revenge are the motivations, with evidence leading authorities on an international search to find the killers responsible.