The heartbreaking, mystifying and unbelievable stories of loved ones who have disappeared and the families that never give up hope. Some stories remain unresolved; some reveal tragic endings and others have surprisingly upbeat resolutions. All of them are propelled by unpredictable twists and turns. Written by Toby Padilla

Logan Schiendelman vanishes, and authorities find his car abandoned. Multiple tips claim seeing Logan, but searches turn up nothing. With no evidence of foul play, questions surface and police are forced to examine his family's controversial past.

The heartbreaking, mystifying and unbelievable stories of loved ones who have disappeared and the families that never give up hope. Some stories remain unresolved; some reveal tragic endings and others have surprisingly upbeat resolutions. All of them are propelled by unpredictable twists and turns. Written by Toby Padilla

The heartbreaking, mystifying and unbelievable stories of loved ones who have disappeared and the families that never give up hope. Some stories remain unresolved; some reveal tragic endings and others have surprisingly upbeat resolutions. All of them are propelled by unpredictable twists and turns. Written by Toby Padilla

When Sage Smith, a transgender teen in Charlottesville, Virginia goes missing, police identify a suspect. But the investigation turns up evidence that forces detectives to look closer into Sage's inner circle to see if there are answers.

Nineteen-year-old Tyarra Williams vanishes from the parking lot of her Greensboro, N.C., apartment complex. When tips suggest that Tyarra may have fallen prey to human trafficking, her grandfather embarks on a cross country search for answers.

When Michael VanZandt, a veteran and father of three, disappears one night in Hermosa Beach, Ca., police suspect a group of strangers may be involved. But his loved ones are haunted by suspicions about his thrill seeking when considering his fate.

Not Available

Thirteen-year-old Tabitha Tuders vanishes while walking to her bus stop in Nashville, Tenn.; police think she's a runaway, but there are disturbing circumstances surrounding her disappearance, leaving her family desperate to find the truth.

The heartbreaking, mystifying and unbelievable stories of loved ones who have disappeared and the families that never give up hope. Some stories remain unresolved; some reveal tragic endings and others have surprisingly upbeat resolutions. All of them are propelled by unpredictable twists and turns. Written by Toby Padilla

When 70-year-old retired firefighter Michael Chambers goes missing, a bloody crime scene in his garage quickly indicates foul play. But authorities begin to believe that the crime scene may have been staged and that Michael may have left on his own.

The heartbreaking, mystifying and unbelievable stories of loved ones who have disappeared and the families that never give up hope. Some stories remain unresolved; some reveal tragic endings and others have surprisingly upbeat resolutions. All of them are propelled by unpredictable twists and turns. Written by Toby Padilla