Put on your trench coat and join Robert Stack in a never-ending marathon of UNSOLVED MYSTERIES. This series covers crimes, tales of lost love, unexplained history and paranormal events.

Unsolved Mysteries • 2:17 AM UTC • 1h 6m

Unsolved Mysteries With Robert Stack

S3, EP18 "Episode 18"

Scared to Death; Texas UFO; Butch Cassidy; Sibling Search & UD.

Unsolved Mysteries • 3:23 AM UTC • 58m

Unsolved Mysteries With Robert Stack

S1, EP9 "Episode 9"

An exploration of Bigfoot II, threats and harassment, murder by arson, and more.

Unsolved Mysteries • 4:21 AM UTC • 2m

Unsolved Mysteries With Robert Stack

S4, EP22 "Episode: 22"

Noah's Ark; new in town; "Model A Sister;" car wash kidnap.

Unsolved Mysteries • 4:23 AM UTC • 57m

Unsolved Mysteries With Robert Stack

S4, EP4 "Episode: 4"

An exploration of Bigfoot II, threats and harassment, murder by arson, and more.

Unsolved Mysteries • 5:20 AM UTC • 58m

Unsolved Mysteries With Robert Stack

S4, EP2 "Episode: 2"

John Wilkes Booth; identical twins; "Man Who Never Was."

Unsolved Mysteries • 6:18 AM UTC • 1h 1m

Unsolved Mysteries With Robert Stack

S4, EP9 "Episode: 9"

Mail bombings; mom's genetic curse; Loving's lost love; "Go Ask Alice;" Sal and Sally.

Unsolved Mysteries • 7:19 AM UTC • 2h 7m

Unsolved Mysteries With Robert Stack

S1, EP1 "Episode 1"

This episode includes: Thumbs & UD, Update: Marsh, Conway, Honeymoon Bones and Dottie Caylor.

Unsolved Mysteries • 9:26 AM UTC • 1h 1m

Unsolved Mysteries With Robert Stack

S2, EP3 "Episode 3"

Kay Hall; update on "Thanks Lieutenant Stevens;" coin scam; Marth's kennel; Sarah Joe; Baltimore baby-napping.

Unsolved Mysteries • Aired Mar 23, 2025 • 54m

Unsolved Mysteries With Robert Stack

S4, EP25 "Episode: 25"

Don's near miss; drunk driver; 11 million dollar heist; migrant twin; Orthodox Jew.

Unsolved Mysteries • Aired Mar 23, 2025 • 1h 19m

Unsolved Mysteries With Robert Stack

S4, EP20 "Episode: 20"

An exploration of Bigfoot II, threats and harassment, murder by arson, and more.

Unsolved Mysteries • Aired Mar 23, 2025 • 32m

Unsolved Mysteries With Robert Stack

S1, EP21 "Unsolved Mysteries With Robert Stack"

Phony California folk healer Jorge Cortez; clumsy Florida bank robber; search for the killers of Montana resident Dexter Stefonek; Arizona police seek escaped convict Michael Mohon.

Unsolved Mysteries • Aired Mar 23, 2025 • 26m

Unsolved Mysteries With Robert Stack

S4, EP19 "Episode: 19"

Getaway photo; looking for Angeline; nine lives; mom and pop murders.

Unsolved Mysteries • Aired Mar 23, 2025 • 1h 27m

Unsolved Mysteries With Robert Stack

S2, EP9 "Episode 9"

Death of boxer Sonny Liston; 19-year-old girl's kidnapping; California woman searches for her foster parents.

Unsolved Mysteries • Aired Mar 23, 2025 • 34m

Unsolved Mysteries With Robert Stack

S2, EP13 "Episode 13"

An exploration of Bigfoot II, threats and harassment, murder by arson, and more.

Unsolved Mysteries • Aired Mar 23, 2025 • 28m

Unsolved Mysteries With Robert Stack

S2, EP17 "Episode 17"

"Thanks Captain Sharp;" Harold and Ma; over the edge; Ogo Pogo.

Unsolved Mysteries • Aired Mar 23, 2025 • 52m

Unsolved Mysteries With Robert Stack

"Episode 4"

This episode includes: Socorro Close Encounter, UD: Car Crash Thank You, Kentucky Visions, Foster Twins & UD and Elevator Murder.

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