In the last episode of the series, Jane finds herself in mortal danger as she makes a final discovery about Julie Ann's murder. The Bentley family make one last desperate stand following the bank job. Meanwhile the CID team deal with the fallout from the heist operation.

Jane plays the radio recordings to Bradfield who, sensing a chance to get his revenge on Clifford, diverts the team to carry out surveillance of the Bentleys, despite orders from his superior officer to stay focused on the murder case.

Reluctantly taking a day off to attend her sister Pam's wedding, Jane calls into the station to check in with Kath, learning that her tip-off has led to a huge surveillance operation. Determined to be part of it Jane rushes off, still in her bridesmaid dress.

Meanwhile, one of Clifford's team betrays him, and Bradfield soon uncovers the exact details of the Bentleys' bank heist. Ignoring the disapproval of his colleagues, as well as Jane, Bradfield is determined to catch them in the act.

Following his arrest, a badly beaten Terrence O'Duncie is brought into the station. With Gibbs on the hook for his attack, Bradfield asks Jane to make a decision with huge repercussions for her future.

The case escalates when Eddie Philips' body is discovered in the canal, and Bradfield suspects they're looking at a double murder. He questions O'Duncie about his connections with Eddie and Julie Ann, but his progress is halted when O'Duncie's solicitor files an official complaint against Gibbs.

Meanwhile, Clifford Bentley and his sons start digging from the café to the bank, but they risk getting caught when David fails to notice the police presence outside as he's high. Silas manages to reassure the police that they're carrying out refurbishments but Clifford and John confront David about his worsening drug habit and unreliability.

Following the revelation of the red Jaguar in George and Mary Collins' garage, the pair protest their innocence about their daughter's final days. The case against them hardens when forensics officers discover further signs of violence against Julie Ann in their home.

Having discovered that Eddie was menacing Julie Ann before her murder, Jane seeks out Bradfield to tell him. Finding him drowning his sorrows in a local pub though, Jane sees her superior let down his guard and the pair bond.

The team also establishes that Julie Ann was last seen getting into a red Jaguar and Jane assists colleague, Kath Morgan, in tracking down the car. This leads them to Homerton Hospital Drug Unit where they interview receptionist, Teresa O'Duncie.

When the body of teenager, Julie Ann Collins, is found in the underground car park of a Hackney housing estate, probationer WPC Jane Tennison becomes immersed in her first murder investigation.