Disparus

After three days at the beach for spring break, 17-year-old Brittanee Drexel vanishes just moments after texting her boyfriend. When police track her cellphone to an isolated rural area, known for alligators and swamps, her family fears the worst.

After spending the day with students, 30-year-old high school teacher and former beauty queen Tara Grinstead vanishes. To investigators, it appears that Tara left with someone willingly -- until they discover a glove in her yard containing male DNA.

After doing laundry at a local laundromat, 28-year-old Niqui McCown disappears. Six years later, an anonymous tip to police connects a former colleague of Niqui's to an unsolved murder of a different woman. Detectives must see if the cases are connected.

Tanya Rider goes missing after her shift in a grocery store in Bellevue, Washington. Her husband, Tom, tries filing a missing person's report but is refused because police believe she left on her own. Police later zero in on Tom as their prime suspect.

Marina resort owners Liz and John Calvert live the good life. But when they discover money missing from their business account, they meet with their accountant. The next day, they're nowhere to be found.

Twenty-two-year-old Bradyn Fuksa vanishes from his new apartment. When his car is found 700 miles away, Bradyn's parents feel their world turn upside down. But the surprises don't stop there, as it's revealed that Bradyn has been guarding a dark secret.

A single mother takes an evening walk while chatting on her cellphone with her boyfriend. Suddenly, he hears her scream, begging someone not to take her. Police think she's been abducted, and eight months later, a potential suspect emerges.

After six months in the Mojave Desert in 2004 following the custody loss of her children in Texas, 30-year-old April Pitzer is ready to return home. But when her past comes back to haunt her, the young mother of two is nowhere to be found.

A 45-year-old CFO's car is found abandoned in a state park a day after he leaves his Little Rock, AR, home for work one Monday morning. Friends and family speculate whether troubles at work are tied to his disappearance.

While shopping for land in Oklahoma, Bobby and Sherilyn Jamison and their 6-year-old daughter, Madyson, vanish. Mystified investigators uncover a series of disconnected leads pointing to drugs, family dysfunction and even supernatural beliefs.

Tim Carney vanishes one morning on his way to morning prayers at his church. After Tim's car turns up by the airport, and his bank account is nearly emptied, the Carneys believe Tim may have fled the church and its strict lifestyle, prompting a search.

When 33-year-old roofer Jeramy Burt's car is found torched in a remote desert valley in southern Idaho, three months after he goes missing, the text messages he sent to his ex-wife about wanting to start a new life become questionable.

When 17-year-old Kara Kopetsky doesn't come home from school one day, her family panics. Foul play is suspected, and a series of unsettling clues surface. But the leads grow cold until a month later, when another local teenage girl goes missing.