Bob and Margaret - Season 4

Real-life mysteries. Investigative reporting. Justice. Dateline is the long-running, award winning newsmagazine bringing viewers stories ranging from compelling mysteries to powerful documentaries and in-depth investigations. Hosted by NBC News' Craig Melvin, each episode of Dateline: Secrets Uncovered incorporates the classic elements of drama and great storytelling: good guys, bad guys, conflict with the highest stakes, suspense and resolution. Hear the chilling tales directly from those most affected and involved, including investigators tasked with cracking the case and the families confronting tragedy. In every story we tell, we help the real people who lived the events share their journeys with you.

Set in a remote castle in the Scottish Highlands and based on the wildly popular Dutch series of the same name, 5-time Emmy-nominated Alan Cumming plays host to twenty larger-than-life personalities (including reality A-listers and America's best game players) who come together to complete a series of challenges with the objective of earning a cash prize of up to $250,000. The catch? Three of the contestants coined "the traitors" will devise a plan to steal the prize from the other contestants coined "the faithful".

Joe Lycett takes a ruthlessly efficient approach to travel, covering everything top tourist destinations have to offer in just 48 hours.

The Swamp People featured in this History series are the proud descendants of French Canadian refugees who settled in the swamp region of Louisiana in the 18th century. Cameras follow members of this fiercely independent group as they struggle to preserve their way of life in the Atchafalaya Basin during the most important time of the year for them: alligator-hunting season.

The Florida Everglades are under siege. An invasion of Burmese pythons is decimating this natural wonder of the South. Entire species of animals are being wiped out. Aggressive, ravenous and incredibly fast-breeding, these pythons have no natural predator to stop them…except for man.