20/20 - Season 49

First aired: 9/26/2025 3 episodes
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Episodes

Episode 1

1. He's Right Behind You

Aired: 9/26/2025

Who would want to kill Kristil Krug, a mom of three kids? Follow the clues in a race against time to catch a deadly stalker.

Episode 2

2. What Happened to the McStays?

Aired: 10/3/2025

In 2010, Joseph and Summer McStay and their two young sons vanished from their Fallbrook, California, home. For nearly four years, the family’s fate remained unknown—until a grim discovery in the Mojave Desert turned the missing persons case into a homicide investigation.

Episode 3

3. Life on the Line

Aired: 10/10/2025

21-year-old mother Denise Amber Lee disappears from her North Port, Florida, home. Follow the real 911 calls as they unravel in this life-and-death case.