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Line of Duty - S03E03

Crime . Drama . Mystery . Thriller

DS Steve Arnott believes there is a dark secret in Danny Waldron's past. But while DI Cottan is commended for cracking the Waldron case, the spotlight falls on Arnott's questionable conduct in a previous enquiry.

Episode Title: Episode 3
Airs: 2016-04-07 at 21:00