PC Nick Klein is back in the safe house, but when DS Phil Hunter gives the address to Dennis Weaver, a hitman is contracted to kill Klein. Meeting with the hitman to retrieve the gun and a photo of Nick's body, Weaver realises Hunter has set him up when the police lead by Supt Okaro and DCI Meadows swoop in on them. Escaping into North Canley Forest, a terrified Hunter barely escapes with his life as a maniacal Weaver swears revenge for his treachery. With Weaver on the loose, however, Nick Klein is relieved of duty and placed in deep witness protection far outside of London, but not before Hunter and Sgt Dale Smith have a chance to clear up their differences with him. Police Staff Polly Page investigates a forged drivers licence, but is reprimanded for exceeding her remit as a civillian staff member. Polly visits Cathy Bradford in a secure psychiatric unit, where Cathy tells her she is ""undercover"" in the hospital. Considering recent events and Bradford's taunts, Polly resigns from Su