Victims' rights activist John Walsh and his son, Callahan, showcase time-sensitive, unsolved cases in desperate need of attention, mobilizing the public to engage in the pursuit of justice.
| Season | From | To | Episodes |
|---|---|---|---|
| All Seasons | |||
| Specials | January 2019 | September 2022 | 16 |
| Season 1 | January 2019 | April 2019 | 12 |
| Season 2 | January 2020 | April 2020 | 12 |
| Season 3 | August 2021 | November 2021 | 12 |
| Season 4 | August 2022 | November 2022 | 12 |
| Season 5 | May 2024 | June 2024 | 6 |
| Unassigned Episodes | 0 |
| Season | From | To | Episodes |
|---|---|---|---|
| Unassigned Episodes | 70 |
| Season | From | To | Episodes |
|---|---|---|---|
| Season 1 | 0 | ||
| Unassigned Episodes | 70 |
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