Jimmy Rose is released from prison following a 12-year stretch for armed robbery and can’t wait to get home. Despite his grandson Elliot’s excitement and his daughter Julie’s happiness at having her father home after suffering a painful divorce, his homecoming is ruined by his wife Jackie’s distance. His granddaughter Ellie and his estranged son Joe are also notably absent. Jackie ends up admitting to Jimmy that she doesn’t know if she loves him anymore and he is left feeling devastated. He ends up reluctantly accepting a zero hour contract at a DIY store a world away from anything he’s ever known. Jimmy also tracks Ellie down and finds out that she is taking drugs and decides to try and help her. After he confronts her suppliers he is beaten unconscious.
Jimmy witnesses a local drug dealer meeting Tony whose violent actions cause to an increase in his sentence. After he finds out that Ellie and Aaron are in trouble because of his actions, Jimmy is forced to think about working with Tony once again. Jackie has a run in with the police and is forced to lie to them, leaving her believing that her husband cannot change his ways.
In exchange for the youngsters' drug debt being written off Jimmy agrees to an assignment for Chivers though he refuses to carry a gun. The family is more cordial towards him after he has saved Roy, who has had a heart attack, but a concerned Jackie persuades Steve to ask Jimmy to be an informant on the drug dealers. Jimmy is not easily convinced but he does speak with Steve. That night he joins Chivers for the crucial deal - robbing a rival gang, which goes according to plan. However Jimmy has to prove whether he will cooperate with Steve and Jackie also has a decision to make regarding her future.