While at a police function on the Thames with Supt. Chandler and DC Spears, DI Cullen spots a man climbing through the window of a riverside house. Cullen calls Sun Hill, but the rather inept team of Hollis and Taviner fails to capture the intruder. Embarrassed by the spectacle, Chandler assigns Spears to work on Sun Hill's burglery statistics, and she finds a link between a number of other break-ins. Chandler is furious when Cullen hires a criminal profiler, Roy Stenning, but his information gets CID close to a likely suspect. Rumours about the relationship between Spears and Chandler are rife thoughout the station, and Spears is not popular with her colleagues, who accuse her of sleeping her way to the top. When Reg Hollis is caught by Chandler for unauthorised use of the PNC, Des Taviner threatens to reveal a secret from their past at Hendon, but finds his own use of the PNC under scrutiny. Chandler and Spears meet for dinner, but Chandler is hesitant to move too fast. The intruder Part One - The Dark Side: Hayward breaks down during a talk with primary school pupils, when he gives a powerful speech about the death of his sister to teach them the dangers of drugs. Gilmore is not happy, but the teacher thinks Hayward's sensitivity will help the students get the message, and may also help them trust Hayward enough to report a bully. An old friend of his sister's asks him out, although when he meets her at a gallery opening, Hayward thinks her friends are dealing drugs. Klein and Hayward find the bully, "Red", who has been using two fierce dogs to steal money and mobile phones from school children. They trace the dogs to the flat of drug-addicted prostitute Stacy Dodds, and a search of her flat uncovers a large stash of heroin. CID are drafted in when Red accuses Stacey of sexual abuse. Whilst on a week's secondment to Scotland Yard's Art and Antiques Squad, Lennox is tasked with investigating a young woman, Tessa Gannon, who tried to sell a forged painting to a gallery. Lennox soon finds a receipt from a gallery owned by an art dealer named Ivor Gregory, who has form for deception. Lennox befriends an artist named Richard Townes, who charges into Gregory's gallery as Lennox peruses the paintings. In the hope of getting a closer look at one of the paintings, Lennox arranges for his wife Shona to buy one of them. He gets it verified, and is disappointed when it is an original. When the painting is returned for re-framing, Lennox realises Gregory has swapped it for a fake.

Part Two: Under pressure from Chandler and the NCS to release Phil Brown, Meadows convinces Moira Scott to admit to George Stubbs's involvement in the armed robbery, as well as drug dealing. Meanwhile, Spears goes undercover as a cocaine buyer, and with some help from NCS and SO19, they catch Stubbs and his supplier red-handed with the drugs. During his interview, Stubbs makes an allegation of corruption against Chandler. Meadows realises that his allegations could be the final nail in Chandler's coffin, and goes all out to substantiate Stubbs' claim.Sgt. Sheelagh Murphy is demoted to a PC, Tony Selby, Lynda Bellingham, Bhasker Patel and Philip McGough guest star Part Four - Stand By Me: A series of dawn raids capture most of the Britannia gang, but Julian Napper and Gary Hughes are still at large. With Napper on the loose, Chandler and Meadows insist Webb go into hiding, but he refuses to be intimidated, even when Lennox's wife's car goes up in flames outside Webb's flat. Webb finds Gary Hughes and tries to persuade him into exposing Napper's location. Chandler and Morys begin to suspect that Webb is informing Napper of their movements, but when the FIU's DS John Curtis concocts a story about Hughes escaping custody, they discover he is Napper's brother-in-law and the informant. Webb then races to Napper's hideout to try and save Hughes. Final regular appearance of Bob Cryer as Sgt, departure of Dale Smith as PC, Ray Lonnen guest stars First appearance of DCI Kim Reid, final appearance of DCI Gordon Wray, Robert Wisdom and Morgan Deare guest star

First appearance of Insp. Andrew Monroe, final appearances of PC Francis 'Taffy' Edwards and Insp. Christine FrazerPart Two: Tyro Shaw threatens to blow Singh's cover in the car-ringing gang, but is convinced otherwise by Webb. Meanwhile, Singh seems to have impressed both Kevin North and his boss, Jennifer Salter, who seems quite taken with him. After a passionate encounter, Salter tells Singh the gang are moving on to Manchester, after North suspects something suspicious is going on. Singh realises he must gather the evidence he needs to convict the gang in North's office, but as he enters the office he is abducted by North and Salter. Webb discovers Shaw blew Singh's cover and is left needing to convince him to tell them where Singh has been taken. minute special, guest appearances of ex-DS Don Beech and now DI Claire Stanton, John Noble and Jason Clarke guest star New title sequence and theme introduced, final appearance of Nurse Jenny Quinnan, Paul Popplewell guest stars Part One: When Lennox is accused of planting evidence in an armed robbery case, Meadows is determined to prove his innocence, and to find evidence to charge the suspect's accomplice, Phil Brown. Unfortunately, Brown claims to have been an informant for former Sun Hill alumni Don Beech, which makes Chandler determined to drop the case at all costs. When an old friend of Meadows' reveals that George Stubbs had previously bribed Chandler's DS at Park Rise, Meadows realises he has some ammunition against Chandler, and uses it to gain the leverage he requires on Brown. Meanwhile, Boyden and Hagen help Clarke recover her ASP when it is stolen during the pursuit of a robbery suspect. Are you a fan of British TV shows? Look no further than Britbox Australia! This streaming service offers the largest range of all your favorite British dramas, comedies, documentaries, and quiz shows all in one place. Whether you're in the mood for crime dramas like Line of Duty or Prime Suspect, classic series like Doctor Who and Fawlty Towers, or new releases like Crime and Hotel Portofino, Britbox has something for everyone.