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; Helen absorbs the shock of hearing that Ann has been abducted.
Tommy brutally takes control of a situation when PC Kirsten McAskill pulls him and Lewis over; his actions devastate Catherine and the entire Yorkshire police force.
Catherine and Tommy finally come face-to-face when he discovers he's a father; a more sinister discovery leaves Catherine fighting for her life.
Catherine sinks into a deep depression as she learns that Tommy is still at large; the net finally closes in on Kevin.
Things get tense at Catherine's birthday party when a drunk Daniel reveals a different version of past events with Becky; Catherine's fears grow when she learns that Tommy has been spending time with Ryan.
Sarah Lancashire
Actor
Siobhan Finneran
Clare Cartwright
Shane Zaza
Shafiq Shah
Charlie Murphy
Ann Gallagher
James Norton