Dive into the mysteries of some of NASA’s most curious missions and explore stories of engineering achievement and human endurance. Each...

From strange abductions, to mutated species, to bizarre occurrences, there are some phenomena that science cannot - or will not - explain. This...

A series of reports chosen by "Dateline" correspondents that answers the question they most often get asked — what their most memorable story...

U.S. Navy veteran turned private investigator Jennifer Marshall investigates some of America's greatest unsolved mysteries.

In the City of Angels, everyone is striving for the unattainable high life, and some are willing to kill for it. Encompassing everything from beach...

Heart-wrenching, personal stories of unsolved missing cases and unexplained deaths that continue to baffle investigators and horrify those left...

Girl meets guy; girl falls for guy; guy turns out to have a dark and deadly secret. You know the drill. As women tell their real-life "I Dated An Axe...

Ancient mysteries, new findings and state-of-the-art scientific methods on the way to sensational discoveries. Actor Jan Novotný searches for...

Investigating a murder is hard enough. But when detectives realize the killer knows how to stage a crime scene to throw them off, the job gets even...

Pull back the curtain on bizarre double lives and see the real stories of men and women who thought they were happily married, until the day they...

Pickers like Mike Wolfe and Frank Fritz are on a mission to recycle America, even if it means diving into countless piles of grimy junk or getting...

Whether trekking through the remote jungles of Cambodia in search of a legendary ape-man or exploring the secrets of the world’s largest cave...

The heartwarming yet uncomfortable relationship between three adult siblings: one in the 1%, one middle-class and one barely holding on.

Delve deep into a vast archive of over 70,000 UFO files gathered over nearly half a century in Hangar 1. MUFON, an independent organization dedicated...

Gary is an emotional wreck and struggles to provide for his daughter since the death of his wife. Mary has a secret she can't bring herself to share...

Edmond Dantes, a sailor falsely accused of treason, is imprisoned in the Château d'If off Marseille. After escaping, and adopting the identity...

The off-kilter, unscripted comic vision of Larry David, who plays himself in a parallel universe in which he can't seem to do anything right, and, by...

When Emily Thorne moves to the Hamptons, everyone wonders about the new girl, but she knows everything about them, including what they did to her...

Wednesday Addams is sent to Nevermore Academy, a bizarre boarding school where she attempts to master her psychic powers, stop a monstrous killing...

Spoiled billionaire playboy Oliver Queen is missing and presumed dead when his yacht is lost at sea. He returns five years later a changed man,...

Hundreds of cash-strapped players accept a strange invitation to compete in children's games. Inside, a tempting prize awaits — with deadly...

The gripping, decades-spanning inside story of Her Majesty Queen Elizabeth II and the Prime Ministers who shaped Britain's post-war destiny. The...