Sarah Lancashire stars as Catherine Cawood, a police sergeant in a small town where drunkards, drug addicts and teenage pregnancies are a way of life.
Sergeant Cawood's world stops when the man who drove her daughter to suicide is released from prison, and Kevin's split-second decision devastates Nevison.
Catherine's search for Tommy gains momentum when she receives a tip-off regarding his whereabouts.
Tommy brutally takes control of a situation when PC Kirsten McAskill pulls him and Lewis over.
Catherine's focus returns to the job in hand as she searches for the owner of the suspicious Milton Avenue property, with dramatic consequences.
Catherine sinks into a deep depression as she learns that Tommy is still at large.
Things get tense at Catherine's birthday party when a drunken Daniel reveals a different version of past events with Becky.
WENH-TV Ch. 11 Durham
WLED-TV Ch. 48 Littleton
WEKW-TV Ch. 18 Keene
W50DP-D Ch. 50 Hanover
W34DQ-D Ch. 34 Pittsburg