What Happened to the McStays?
20/20 · Season 49 · Episode 2
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 Details
Air date, runtime, timezone, and episode position.
Season
49
Episode
2
Air Date
03/Oct/2025
Air Time
21:00
Runtime
81 min
Overview
Episode summary.
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.
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