TONIGHT: An army soldier goes missing - now, follow the clues & the search in a gripping mystery that will leave you guessing until the very end. “You Took My Daughter” — the all-new 20/20 true crime event premieres tonight at 9/8c on ABC. Stream on Disney and Hulu. | ABC 20/20

Does the Great Pyramid contain the world's greatest mystery? We're chasing Pharaoh Khufu’s treasure on a new season of #ExpeditionUnknown premiering Wednesday at 9P on Discovery. | Expedition Unknown

Calling all "Goosebumps" lovers. Author R.L. Stine is writing a novel for adults next year, and it features a murder mystery. | CBS Mornings