Warning: SPOILERS ahead for Tracker Season 4, Episode 1.Tracker Season 4 has officially kicked off with a new mystery, and Colter Shaw seems to be stuck on a case he cannot solve. This is actually a pretty big deal for a guy whose entire career is built around finding people. Tracker Season 4, Episode 1, “Safe Harbor,” gives Colter a perfectly familiar case of the week, sending him after a missing father before his search leads him to a dangerous human trafficking operation at the Port of Los Angeles.

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