John Walsh leads viewers through unsolved violent crimes that urgently need to be closed - where time is of the essence and harnessing the power of ID's active and engaged audience could bring these criminals to justice. Joining John in every episode is his son, Callahan Walsh, who leads the operation on the ground, working in tandem with the community and local authorities to search for persons-of-interest.
Last Episode02x12 Witness To Murder Aired: Apr. 01, 2020
John works with investigators to bring Frank Contreras into custody after he commits a terrible crime witnessed by a child. Cal takes on a …
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