Troubled by Gill's comments about her relationship with Will Pemberton, Rachel gets cold feet about accompanying him to an awards ceremony. When Janet discovers that Elise's heart is being broken by Eleanor's son, her maternal instincts make her want to rescue her daughter and bring her home. When a couple are shot at close range in their pub in the early hours, their son Simon feels utterly alone, having lost his sister Carla when he was three. But when his aunt is identifying the bodies, she tells them that Carla did not die, but was disowned by the family after failed attempts at rehab.

The episode was rated 7.63 from 131 votes.

Unable to get over being second choice for the sergeant's job, Rachel punishes Janet for not telling her. After Elise moves in with Ade, Janet feels inadequate as a mother although she has not given up on the idea of a boyfriend entirely. When an unconscious baby is admitted to hospital, staff are concerned that his injuries do not match his parents' explanation. But with a child-minder and her stoned boyfriend in the mix, it is unclear who had the baby's best interests at heart.

The episode was rated 7.64 from 137 votes.

Having witnessed her father Joe being arrested for the murder of her mother Eunice, Helen shows up at Janet’s door saying that she believes her brother Michael might be buried in the cellar of the family home. After the remains of a second body are discovered, the case becomes much more serious and Det. Supt. Dodson is drafted in as the S.I.O, with Gill as her deputy.

The episode was rated 7.64 from 107 votes.

Syndicate 9's new sergeant is thrown in at the deep end with a historical missing person's case as Mandy Sweeting's body is discovered, 23 years after she disappeared. The biggest challenge is wading through poor police work that hampered the original case and re-interviewing bruised and bereft family members, making this a particularly challenging job for the new sergeant. Janet keeps Gill's secret but shares another secret with Rachel - she wants a boyfriend.

The episode was rated 7.66 from 144 votes.

The team investigate the murder of a man whose body is discovered shortly after he is reported missing by his son is discovered. Rachel's self-destructive behavior leads to a falling-out with Janet, and forces Sean to realize that his marriage is over.

The episode was rated 7.68 from 103 votes.

Janet is unnerved to discover that DSI Dodson cannot ignore her concerns about Gill's drinking. Just as Rachel feels as if she is getting to grips with the job, she makes a fatal error that puts Janet and Chris in danger. When a man's body is found wedged between rocks on the moors with nothing to identify him, a road block is set up and an appeal put out. Enquiries lead Janet and Chris to a nearby farm, but they discover something much more sinister and shocking than they could ever have anticipated.

The episode was rated 7.69 from 136 votes.

When the body of teenager Will Hudson is found in a Manchester park, Rachel (Suranne Jones) knows his death could have been prevented. With information about the Taking Out The Trash website in the public domain, monitoring potential targets is severely compromised and Mitch’s missing daybook seems the likely source of the leak. When Rachel receives an email with video footage of Will’s murder, it’s clear the rules of the game have changed and Rachel’s safety is in question. Acting as appropriate adult in Taisie’s (Harriet Waters) police interview, Janet (Lesley Sharp) feels powerless to protect her daughter. Rachel tells her that as a police officer, she mustn’t interfere, but Janet is Taisie’s mum first and knows she has to do something to stop the madness. At the end of Syndicate 9’s darkest day, Janet and Rachel share a drink, and it’s clear to Janet that the world is now a very different shape.

The episode was rated 7.74 from 225 votes.

Having discovered the remains of several bodies, Gill and Dodson’s teams need to try and identify them, and attempt to piece together the order in which they were murdered. Joe Bevan remains tight lipped though. After the remains of a teenage girl are found in an upstairs room, Helen is faced with the possibility that her dad killed both her brother and her sister.

The episode was rated 7.74 from 103 votes.

Rachel (Suranne Jones) is criticised for the lack of progress in the investigation and with Steve Dench (Richard Riddell) still the prime suspect, she knows she must find both a murder weapon and the encryption code used to access the Taking Out The Trash website. Then, they not only get Steve for multiple murders, but they also find the man he’s playing his sick game with. Discovering that the witness at Michael Edgerton’s murder may be one of the killers marks a big breakthrough, and with the attacks increasing, Rachel hopes that the killers will start to make mistakes. The appearance of a star on Rachel’s gatepost terrifies Alison (Sally Lindsay) and when Julie Dodson (Pippa Haywood) finds out, Rachel’s position as Acting DI is jeopardized. But with new evidence challenging Steve’s alibi and a positive ID of the witness, Rachel is determined to hang onto the case. When Janet’s (Lesley Sharp) attempt to help Taisie (Harriet Waters) results in a complaint, her faith in doing everything by the book is rocked, and with Rachel’s pregnancy out in the open, both Scott and Bailey have life-changing decisions to make about their futures.

The episode was rated 7.78 from 236 votes.

A vulnerable young man is reported missing by his pub landlord boss. Syndicate 9 suspect Robin McKendrick may have been killed after a photo of him bound and gagged in a car boot appears online. However, the case takes an unusual turn when a body found in a flooded quarry turns out to be a woman's corpse. Meanwhile, battle-scarred from their conflict last year, Scott and Bailey are determined to move forward with honesty. The pair find themselves in front of the promotion board and pass with flying colours, leaving Gill with the task of choosing who stays on as sergeant at the department.

The episode was rated 7.79 from 160 votes.

Returning to Syndicate 9 after a year with Vice, Rachel (Suranne Jones) needs some time to rekindle her neglected friendship with Janet (Lesley Sharp), but the shocking murder of Michael Edgerton forces her to hit the ground running as she steps up to Acting DI under the watchful eye of Julie Dodson (Pippa Haywood). When a teenage boy sees a clip of Michael’s murder on the darknet, it’s clear that Syndicate 9 are dealing with something much bigger and more sinister than a single, indiscriminate murder. A sick game is being played and Syndicate 9 need to find the next potential victim before the killer does. Glad of Rachel’s return, Janet couldn’t have known how much she was going to need her friend. When Taisie (Harriet Waters) is arrested, setting off an inconceivable chain of events, Janet is thrown into turmoil and Rachel’s wisdom and experience are exactly what she needs to steer her through the crisis.

The episode was rated 7.79 from 227 votes.

When Rachel bumps into an ex-juror, she is shocked to discover that the woman had an affair with Nick in the middle of a trial - and a desperately worried Nick does everything in his power to persuade Rachel to keep the knowledge to herself. After a current investigation throws up similarities to Veronica's murder, Janet tells Geoff Hastings that they could be one step closer to bringing his sister's killer to justice. But when Rachel stumbles across some new facts in the case, she realises that Janet is in terrible danger. Can she get the information to Janet in time?

The episode was rated 7.81 from 111 votes.

The discovery of slaves on the Pritchard farm has turned a murder inquiry into a huge, multi-agency investigation. Under investigation for the crash, a devastated Janet finds solace in Chris's calm reasoning. When an incandescent Evie Pritchard smells alcohol on DCI Gill Murray's breath, she has all the ammunition she needs to discredit both the investigation and Gill. But Scott and Bailey are determined to get Gill through to retirement with her reputation intact.

The episode was rated 7.82 from 149 votes.

Last in series of the police drama. As Rachel is walking home, she is narrowly missed by a car which then smashes into the side of the road. The next day, she learns that the crash is linked to the disturbing information she found out about Nick's affair with a juror. Was Rachel targeted - and could Nick have had something to do with it? The latest case for the team is that of a teenager shot dead at home. His best friend witnessed the shooting but it takes all of Janet's skill to get him to open up as he is petrified that he could be next. Meanwhile, Rachel's career hangs in the balance as Gill discovers just how far she has gone in pursuit of love, and Janet needs to end her affair once and for all.

The episode was rated 7.90 from 111 votes.

Janet and Rachel’s friendship has been ruined. Janet attempts to stay professional, but the lack of communication between them makes things difficult. A call from MIT Command, alerting the team to Gill’s disappearance forcing Scott and Bailey to put their differences aside and work together.

The episode was rated 7.97 from 114 votes.