In the final episode, Dinah clashes with Deering, setting off an irreversible chain of events, and an attempt to save the lives of a mother and baby goes disastrously wrong.

With Deering, Dinah and Joy's friendship in jeopardy and Donna Calvert missing, the race to prevent the Attahs' escape and to bag them once and for all puts the team's lives at stake. The final action-packed showdown sees Viv at her finest, deconstructing Nora's family, and trying to repair the fractures that have crept in to her own...

The team are running out of options and their strategy is threatened when one of their own is placed in peril.

With Deering suspended from duty, she runs rogue determined to get Nora. Back at the station, Lickberg tries to control the team, as they urgently up the manhunt for one of the Attahs' missing victims. And an unlikely alliance is agreed between Deering and Nora, who wants to stop an FGM cutter arriving on her patch - and Teegan is sent in under cover.

As the team quell the riots that are exploding throughout Manchester, Dinah's discovery of young casualties in a gang-owned property pushes investigations in an unexpected direction. Joy is thrown into freefall after a shock discovery at Friday Street.

The fatal shooting of a respected surgeon leads the team to an unlikely suspect. Meanwhile, Dinah and Deering make disturbing new discoveries in the serial killer case, fearing it might not be over.

Single mother and off-duty detective constable Dinah Kowalska pursues a murder suspect through the streets of Manchester, only for him to get killed by a bus. As a result, Vivienne Deering, her outspoken detective inspector superior, instructs her to withdraw her application for sergeant, the promotion going instead to the nervous Joy Freers. On a visit to the morgue, Kowalska sees the corpse of a girl with Down Syndrome, the second victim with that condition to be hauled out of a river in recent weeks, and suspects a serial killer is at large.

Election day looms and the team is on high alert, as Beckett's reign of terror appears to be escalating when an elderly Jewish man is found dead in a graveyard. The team is right on Beckett's tail, and a meeting between getaway driver Dennis and Beckett promises to be the key to capturing him.

Caroline McCoy’s political reign brings chaos to the streets of Manchester, and catapults hardline DCI Terry Taylor into Friday Street cop shop, to bring the police in line with her agenda

Killer Beckett's next target is Manchester's children and Viv and the team must track down the poisoned batch of halal meat that Beckett has unleashed on the city before it's too late. In the hunt to get closer to Beckett, Dinah attempts to win the trust of the undercover cop in the midst of the far-right group Beckett used to be involved in - and uncovers explosive secrets.

On full surveillance mode, the Friday Street squad have an explosive start to the day, at the funeral of the son of notorious gangster Nora Attah. Straight back in the deep end, DI Viv Deering and the team fight to prevent the breakout of a gang war in the city. Meanwhile Joy and Tegan literally uncover a body of work to piece together a case against the dodgy crematorium owners.

Paul Abbott's award-winning drama returns for a third series and sees DI Viv Deering and the Friday Street team face off against their most formidable antagonist yet: the far-right.