Hosted by Robert Stack, this series uses re-enactments and interviews to retell the circumstances of, well, mysteries that are unsolved. Covering crimes, tales of lost love, unexplained history and paranormal events.


Robert Stack

Available to watch on supported media.



This episode includes: Tami Lynn, Hudson Valley UFO (Pts. 1 & 2) and Daredevil Doe & UD

Duration: 42 minutes



This episode includes: Love Triangle & UD, Champ, Pierre's Amnesia & UD, UD: Honky Tonk Woman, Killer Kranz & UD and Memphis Kidnap & UD.

Duration: 45 minutes


episode 5026

This episode includes: Arson King, Huey Long (Pts. 1 & 2) & UD and Brother X & UD.

Duration: 47 minutes


episode 5027

This episode includes: Cop Killer Escape & UD, Mexico Suicide & UD, Is Ed Dead?, UD: Coffee Pot Twins and Next Most Wanted & UD.

Duration: 45 minutes


episode 5028

This episode includes: Dear Patricia & UD, Lucie's Last Fare & UD, Unknown Mom & UD and Little Miss Panasoffkee & UD.

Duration: 42 minutes


episode 5029

This episode includes: Dreams Come True, New Orleans Killer, Comic Relief & UD and J.D. Method & UD.

Duration: 44 minutes


episode 5030

This episode includes: Moss Beach Ghosts, Civil War Ghosts, She Sold Babies & UD, UD: Pierre's Amnesia and Bus Stop Amnesia & UD.

Duration: 49 minutes


episode 5031

This episode includes: Falcon Lake UFO, Inside Frontera, UD: Loving's Lost Love and Disappearing Dad.

Duration: 45 minutes


episode 5032

This episode includes: Last P.O.W. (Pts. 1 & 2) & UD, Cop Assault & UD, Murderer McNair & UD and Witness for the Prosecution.

Duration: 45 minutes


episode 5033

This episode includes: George Anderson (Pts. 1 & 2), UD: Brother X and Strangulation Saga (Pts. 1 & 2).

Duration: 45 minutes


episode 5034

This episode includes: Polio & UD, Missing Gringo, UD: Lucky Lost Love, Poison Shake & UD and UD: Goldie's Girl.

Duration: 45 minutes


episode 5036

This episode includes: Martin Luther King (Pts. 1 & 2), Surprise Sister & UD and Texas Most Wanted & UD

Duration: 52 minutes


episode 5038

This episode includes: Dahlia/Torso Connection, Brenda's Bunch & UD, Bullock's Deadwood and Dede's Gone & UD.

Duration: 47 minutes


episode 5039

This episode includes: Christmas Miracle, Burned Businessman & UD, Gallup Abduction and Mystery Santa.

Duration: 42 minutes


episode 5040

This episode includes: Marcos' Buddha (Pts. 1 & 2), Who Killed Kaitlyn? and Nine Isn't Enough & UD

Duration: 44 minutes


episode 5042

This episode includes: Canadian UFO, UD: Brenda's Bunch, Dropped Off DOE & UD, Larry's Rampage & UD and Priceless Search & UD.

Duration: 49 minutes


episode 5043

This episode includes: Who Killed Jeanine? (Pts. 1 & 2) & UD, UD: Charlie's Angels, Lost Generation & UD and Pigtail Fugitive.

Duration: 49 minutes


episode 5044

This episode includes: Rainboy, Motorcycle Murder, Hospital Hoax & UD Hoax and Best Friend's Sister.

Duration: 45 minutes


episode 5045

This episode includes: Drug Playboy & UD, Mrs. Rogers, Philip's Angel & UD, Memphis Kidnap Progress Report, UD: She Sold Babies and Pizza Bandits.

Duration: 47 minutes


episode 5046

This episode includes: MP Death, UD: Cop Killer Escape, UD: Musician Sings the Blues, Social Security & UD and Footlocker Bones.

Duration: 45 minutes


episode 5047

This episode includes: Casolaro, If the Truth Be Known & UD, Rest Stop Killer and Purvis Confession & UD.

Duration: 48 minutes


episode 5048

This episode includes: Image of Guadalupe, Stahl's Paintings, UD: Lost Generation, Biker & The Vet & UD and Donut Murder.

Duration: 46 minutes


episode 5049

This episode includes: Gander, Peggie's Brother, Cult of de Cloud & UD and UD: Polio

Duration: 46 minutes


episode 5050

This episode includes: Miram's Memory & UD, Ghost Blimp, Fugitive Fireman & UD and Russian Roulette & UD.

Duration: 62 minutes