No Refuge

There is an armed robbery at a local family-run glassworks, in which an employee is shot dead. The owner, who is one of the witnesses, is then threatened, and goes into hiding. The family has a tangled web of personal relationships, which Frost has to understand, in order to find who is doing the threatening. Meanwhile, Shirley Fisher's mother dies, and he fails to attend the funeral. DS Lawson lets business and personal relationships mix, with serious consequences.

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S04E01 - Paying the Price