Blown Apart

An escaped psychopathic prisoner named Max Kale goes on a spree, eager to kill people who helped put him away in prison—a list of people including Walker, Alex, a doctor named Jane Pine, a judge named Hollister, Max's ex-wife Angela, and the neighbors from the street where Max was raised. Now Walker must do whatever it takes to protect the people and put an end to Kale's rampage.

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S04E02 - Deep Cover