Investigators walked into a mystery that would turn their world upside down… Watch tonight at 9/8c on a 2-hour Dateline Weekend Mystery on NBC. | Dateline NBC

Tonight on a new Dateline, the latest chapter in this hair-raising tale, featuring new evidence, explosive testimony and the prosecution's new star witness. Watch at 9/8c on NBC. | Dateline NBC

A medical mystery was about to turn into a full-on police investigation… Tonight on an all-new Dateline at 10/9c on NBC. | Dateline NBC

Hello from friend and unofficial Dateline Friday Ambassador Jennie! What better way to kick off 2021 than with a 2-hour mystery hosted by Keith Morrison? Why, we can't think of one thing! | Dateline NBC

It’s a story about a red-hot Texas passion and a bitter feud... And tonight at 10/9c on Dateline, there’s a whole new chapter. | Dateline NBC

It was as if Frances had developed tunnel vision... The full story, and a new twist, tonight at 10/9c on a classic Dateline. | Dateline NBC

Today on a new Dateline: True Crime Weekly, Andrea Canning has the story of a former Olympian accused of being a drug kingpin responsible for several murders, a big ruling in the Mangione case, and a verdict in the trial of a Virginia man accused of masterminding a double murder. Listen now: https://podcasts.apple.com/us/podcast/verdict-in-double-murder-trial-olympian-accused-of/id1745566056?i=1000748321316 | Dateline NBC