Walker learns Cam has a serious infection and he is with him when he dies. Walker is devastated and becomes even more determined to get his revenge on Brendan. He steps up his plan for revenge when Brendan calls him for his help in disposing of Joel's stepfather, Mick's body. While they are at a rest stop, Walker hears a noise from the boot of the car and discovers that Mick is still alive. He tells him that he is an undercover police officer, and that Brendan will pay for what he has done to him, before suffocating him with the plastic sheet that he is wrapped in. In an attempt to get close to Brendan, Walker kisses him and allows Brendan to have sex with him. At the holiday home Brendan admits to Walker that his father abused him (something he has never told anyone). Shortly after Walker calls his police contact and reveals that he finally has Brendan where he wants him, but is surprised when Brendan reveals himself to be on the other end of the phone call. Shortly after an explosion occurs and Brendan is injured. At the hospital, Walker tells Brendan that he is going to hurt his loved ones and admits to watching Lynsey die. Brendan gets a gun for protection, but Walker steals it. Brendan later finds Walker holding Ste at gunpoint and tackles him, resulting in Walker firing the gun and accidentally hitting Riley Costello (Rob Norbury). Walker quickly leaves the scene and then calls Brendan, revealing that he has his son, Declan, and is planning on injecting him with drugs until he overdoses. Brendan, Ste and Doug find Declan unconscious in a lock-up and get him to the hospital. Walker sends Brendan a video message and, believing Declan to be dead, says that it is goodbye.
