Season 21

In February 1976, 19-year-old Michelle Mitchell vanished from a well-lit parking lot in Reno, NV; the young woman's disappearance would quickly be at the center of one of the most complex and disturbing cases in the state's history.

When a couple is found shot down in front of their home in the suburb of Thunderbolt, the entire community hears the barrage of gunfire. As police sift through the evidence they must determine if one of the neighbours is a witness or the killer.

After a young mother is found murdered in her own home, investigators must untangle a web of lies using wiretaps and secret recordings to ultimately pick up the trail of her cold-blooded killer.

When a 15-year-old girl vanishes from her front porch, police must uncover when she was last seen, where she might have been going, and who would have wanted her dead.

When the lifeless body of a young girl is found on the shore of the Feather River, police hope that following a trail of footsteps and discarded articles of clothing will lead them to her killer.

When a young girl vanishes while walking her dog on a military base, it marks the beginning of a missing persons case that would capture the hearts of the entire county.

An argument among sisters over a new dress leads a young girl to leave her house to calm down. But when she never returns, the desperate search to find her begins.

A teenage lifeguard vanishes from a quiet community swimming hole less than three minutes after her mother dropped her off for work.

A beautiful young mother vanishes just hours before the deadliest hurricane in Texas history; the investigation forces her loved ones to weather a storm and then survive a tempest.